BAZELON, Chief Judge:
On February 19, 1971, appellant, John H. VanderMolen, was honorably discharged from the United States Air Force under Air Force Regulation (AFR) 36-3.1 Claiming that his discharge was illegal, VanderMolen brought suit in United States District Court asking that he be reinstated on active duty in the Air Force, that he receive $9999.99 in damages,2 and that the Air Force be required to remove from his records any notation that would bar him from reenlisting in the Air Force, and in particular remove any reference to AFR 36-3.3 VanderMolen also alleged that the Air Force had illegally cancelled his scheduled promotion to captain, and he asked that his reinstatement be with the rank of captain and that his back pay be calculated at that rank. The district court granted appellee’s motion for summary judgment and dismissed VanderMolen’s complaint. We reverse.
I. BACKGROUND
VanderMolen was commissioned as a Reserve Officer, Second Lieutenant, in the United States Air Force in April of 1967. His first assignment was an Intelligence Officer for the 327th Air Division at Taipei, Taiwan. His duties included collection, collation, and analysis of highly sensitive, top secret data dealing with the People’s Republic of China. His Officer Efficiency Re[620]*620ports (OER’s) at this time portray “a very fine, exceptionally mature, professionally competent young officer.”4 His superior, Lt. Col. Brown, praised his “keen analytical capability, high degree of intelligence, [and] unswerving dependability and dedication to duty . . . .”5
In March, 1970, VanderMolen, now a First Lieutenant, was assigned to attend a Missile Launch Officer’s Course at Chanute Air Force Base, Illinois. During the first few days of introductory classroom instruction, VanderMolen and his fellow students were advised by an instructor, Lt. James Tindell, that anyone having personal qualms about the overall nuclear weapons mission of the Air Force or about his ability to handle a missile launch assignment, should speak up immediately so that neither the Air Force nor the student would needlessly invest in the training.6 At this time VanderMolen also learned, for the first time, of the substantial possibility that United States nuclear deterrent strategy may be in part premised upon the “extensive destruction of large population centers” and that Launch Control Officers would not be informed of the targets of the missiles that they launched.7
This information disturbed VanderMolen, and he decided to accept Lieutenant Tin-dell’s invitation to speak with him. Tin-dell's written counseling record states that “Lt. Vandermolen expressed ... his belief that nuclear war or a nuclear force is not right. His religious beliefs and convictions will not allow him to be a part of a nuclear weapon system.”8 Lt. Tindell referred VanderMolen through the chain of command for counseling.9 He was ultimately counseled by Col. John A. Walker, Jr., Chief of the Department of Missile Training. “By this time,” VanderMolen states in his affidavit to the district court,
my feelings had crystallized as a result of my research, counseling, and soul searching. ... I told Col. Walker that I supported various concepts of nuclear strategy, except as they called for the use of nuclear weapons to kill as many people or to render uninhabitable as large an arpa as possible. I said that if I could be assured that the United States did not employ such a nuclear strategy most, if not all, of my qualms about serving as a Launch Control Officer would be eliminated. I also assured Col. Walker during this counseling session that regardless of what Col. Walker recommended or the ultimate outcome of my predicament, I would perform all my duties as an Air [621]*621Force Officer to the very best of my ability.10
Col. Walker’s Counseling Report of April 3, 1970, however, attributes to VanderMolen a slightly broader ground of opposition:
Lt. Vandermolen appears to be genuine in his belief that he does not believe he would be able to perform the Missile Launch Officer’s tasks if required to launch missiles. He bases his belief on moral convictions against his taking a direct part in use of nuclear weapons; however, he did point out that he appreciates the status of our missiles as a deterrent force. Lt. Vandermolen indicated that he was not a volunteer for Missile Launch Officer duty and until attendance in Course 30BR1821G, Missile Launch Officer, WS-133A, did not realize what the Launch Officer duty entailed. Based on his ability, he should be able to perform in other career fields not related to the Human Reliability Program.11
On April 6, 1970, a Faculty Board was convened pursuant to the provisions of AFR 53-15 (including ATC Supp. 1, 15 January 1970)12 to consider VanderMolen’s removal from the training course. The Board recommended VanderMolen’s removal from the course under Air Force Manual (AFM) 35-99 (2 July 1965). AFM 35-99, the Human Reliability Program, establishes “the requirements and responsibilities for screening, selecting, and continuously evaluating all personnel who control, handle, [or] have access to . nuclear weapons . . 13 VanderMolen was the only witness in the Faculty Board proceeding. The Faculty Board recorded a summary of its proceedings that stated:
Lt. Vandermolen firmly expressed a “religious, moral” objection to the use of nuclear weapons, CB [chemical/biological] agents, or destruction of population centers. He felt he could successfully compíete course 30BR1821G but could not perform any duty in the release of nuclear weapons or CB agents or be directly involved in causing the destruction of population centers. He felt he could perform effectively in his previous career field, intelligence. He felt no responsibility for any combat (possible or actual) usage of intelligence information processed by him.14
VanderMolen’s later affidavit to the district court, however, states that, “I testified before the Board restating my personal, philosophical, moral, and religious difficulties with the use of nuclear weapons on civilians, exactly as I had stated these difficulties to Col. Walker.”15
VanderMolen’s description of the proceedings of the Faculty Board are undisputed:
A secretary was present at the Faculty Board to take notes; however, no verbatim transcript was compiled. During these proceedings I was never advised of the procedural protections of AFR 11-1, nor was I informed of any rights I might have had to such protection. Accordingly, I did not call witnesses on my behalf and did not contest the admissibility of evidence presented by the government. I was not represented by counsel during this hearing. Indeed, throughout the counseling sessions at the school, no one ever suggested that I should see a lawyer or hinted that I might need one. I did think briefly of consulting a lawyer on my own, but the aura of general informality and goodwill present throughout the entire counseling process at the school caused me to dismiss the idea. Furthermore, I felt no need to seek an attorney since Col. Walker had advised me that my removal from the school would not jeopardize my Air Force career, except that [622]*622in the future I would be restricted from handling nuclear weapons.16
The Board decided that VanderMolen
should be disenrolled from training due to his expressed deficiency under AFM 35-99. He should not be considered for reinstatement in any career area governed by AFM 35-99. In the interest of economy, he should not be considered for further technical training but should be returned to his previous career field of intelligence.17
VanderMolen was accordingly assigned to the 66th Missile Squadron (SAC), 44th Strategic Missile Wing, South Dakota, where he was temporarily assigned as Squadron Executive Officer for the 28th Field Maintenance Squadron. He continued to perform so as to receive extremely favorable evaluation from his superior officer.18
Nevertheless, VanderMolen’s Air Force career began to slide precipitously. Although VanderMolen had been scheduled for promotion to captain on April 19, 1970, his promotion was withheld for the stated reasons that:
Tech Tng Center, Chanute AFB, 111 MSG dated 9 April 1970, to SAC/DPMTO: Officer disqualified UP AFM 35-99, msl tng terminated this date. Officer expresses objection to use of Nuclear Weapons because of religious and moral beliefs.19
On May 21, 1970, Lt. Robert Melvin recommended that a discharge proceeding be initiated against VanderMolen pursuant to AFR 36-3, para. 4(f).20 He stated that:
[623]*623I recommend this action because Lt. Vandermolen, while attending Missile Launch Officer’s Course OBR1821G at Chanute AFB, Illinois, expressed a firm religious, moral objection to the use of nuclear weapons and CB agents, or destruction of population centers. He was permanently disqualified for missile duty under provisions of AFM 35-99 on 3 Apr 70, and subsequently released from missile school. I believe this officer has a defective attitude toward the military service and its obligations, rendering him noneffective as a line Air Force Officer.
JA at 113.
On August 10 a Selection Board consisted of three SAC Air Force Colonels determined that VanderMolen should be required to “show cause for retention in the Air Force.”21 VanderMolen chose not to resign, but to place his case before a Board of Inquiry.22 The Board met on November 18. It had before it a statement written by VanderMolen on his own behalf, numerous favorable OER’s and statements, letters, and affidavits from VanderMolen’s past superior officers, as well as the records of the proceedings of the Selection Board, Melvin’s recommendation, the report of the Faculty Board at Chanute, and various other documents pertaining to his dismissal from Missile Launch Officer’s School. At the outset, VanderMolen argued that the administrative process leading up to the Board was defective and, in some respects, unconstitutional.23 He moved that the action against him be dismissed. When his motion was denied, he refused to participate further in the hearing. As a result, no witnesses testified.24 The Board recommended that VanderMolen be honorably discharged for the reason “that while attending Missile Launch Officer’s Course ... at Chanute, ... he expressed a doubt as to his ability to execute a missile launch order, thereby necessitating his removal from the course of instruction.” 25
If the Selection Board determines that an officer be required to “show cause for retention in the Air Force,” and if the officer declines to resign, AFR 36-3, para. 23, provides that a Board of Inquiry be established to conduct a “fair and impartial hearing,” evaluate the evidence, and make appropriate recommendations. The burden of proof remains upon the officer “to effectively refute, rebut, or raise serious doubt concerning the reasons for his selection to show cause for retention.”
[624]*624The discharge was reviewed and approved by the Air Force. On February 19, 1971, VanderMolen received an “honorable discharge.” However, his separation papers (D.D. Form 214) carry an “SDN Number” indicating that his discharge was' under AFR 36-3.26
VanderMolen has exhausted his administrative remedies. See Cunningham v. United States, 549 F.2d 753, 765 (Ct.C1.1977); Committee for GI Rights v. Callaway, 171 U.S.App.D.C. 73, 80-81, 518 F.2d 466, 473-74 (1975). After his discharge he applied to the Air Force Board of Correction for Military Records, seeking essentially the same relief that he later sought in the district court. The Board denied his petition.
II. VanderMOLEN’S DISCHARGE
Appellant VanderMolen masses a battery of arguments attacking his discharge as in violation of his constitutional rights and in violation of the Air Force’s own regulations. Because we find that his discharge in fact was based upon information obtained in violation of the procedures required by AFR 53-15 (including ATC Supp. 1,15 January 1970), we do not reach the serious constitutional questions raised by Vander-Molen’s complaint.27 See Harmon v. Brucker, 355 U.S. 579, 581, 78 S.Ct. 433, 2 L.Ed.2d 503 (1958).
It is, of course, a fundamental tenet of our legal system that the Government must follow its own regulations. Actions by an agency of the executive branch in violation of its own regulations are illegal and void. Vitarelli v. Seaton, 359 U.S. 535, 79 S.Ct. 968, 3 L.Ed.2d 1012 (1959); Service v. Dulles, 354 U.S. 363, 77 S.Ct. 1152, 1 L.Ed.2d 1403 (1957); Accardi v. Shaughnessy, 347 U.S. 260, 74 S.Ct. 499, 98 L.Ed. 681 (1954). This principle is fully applicable to the Air Force. Mogavero v. McLucas, 543 F.2d 1081, 1085 (4th Cir. 1975); Geiger v. Brown, 136 U.S.App.D.C. 132, 135, 419 F.2d 714, 717-19 (1969); Powell v. Zuckert, 125 U.S.App.D.C. 55, 61, 366 F.2d 634, 640-41 (1966).28
VanderMolen contends that the Faculty Board Proceedings at Chanute are tainted and illegitimate because they denied him important procedural rights guaranteed by Air Force Regulations. The Faculty Board was convened pursuant to AFR 53-15 (including ATC Supp. 1, 15 January 1970). Paragraph 4(c)(5) of AFR 53-15 states that:
[Proceedings of faculty boards which inquire into the conduct, efficiency (not to be confused with flying ability), fitness, or pecuniary liability of the student as a member of the Air Force, must follow all [625]*625requirements of AFR 11-1 except when a student is enrolled in a precommissioning school.
Similarly, Paragraph 3c(2)(a)-l of ATC Supp. 1 states:
When it is anticipated that the board action could jeopardize a student’s commission, rating, grade or status, or possibly cause his separation or demotion . all requirements of AFR 11-1 must be met.29
Finally, paragraph 4 of ATC Supp. 1 strongly implies that faculty board proceedings cannot be used as the basis for administrative discharges under AFR 36-3 unless the requirements of AFR 11-1 have been met:
A faculty board is a fact-finding agency appointed to consider all circumstances relative to a student’s training and to arrive at specific recommendations regarding retention in training or disenrollment from training. Board proceedings are used primarily as the basis for student personnel actions relative to training status. When conducted under AFR 11-1 and declared legally sufficient, board proceedings may be used as the basis for further administrative action such as that authorized in AFR 36-2/3
Even if the Faculty Board Proceedings at Chanute cannot be said to have inquired into VanderMolen’s conduct, efficiency, or fitness “as a member of the Air Force,’’ it is manifest, as VanderMolen’s subsequent history demonstrates, that there was the strong possibility that the findings of the Board could jeopardize his “commission, rating, grade or status, or possibly cause his separation.” The evident good intentions of the instructors at Chanute cannot change this fact. The procedural protections of AFR 11-1 should therefore have attached. Any other conclusion would render meaningless the protections of ATC Supp. 1, para. 3c(2)(a)-l.
AFR 11-1 guarantees, among other rights, the right to counsel,30 the right to a verbatim transcript,31 the right to notification of specific allegations,32 the right to call and cross-examine witnesses,33 the right to challenge Board members for cause,34 and the right to legal review by the staff judge advocate.35
[626]*626It is undisputed, however, that VanderMolen was neither granted these rights, nor even notified of their existence. He called no witnesses, did not contest the admissibility of any evidence, and was not even represented by counsel. No verbatim transcript of the proceedings was prepared. Such a massive violation of procedural rights would, standing alone, be sufficient to render void the Faculty Board proceedings. See Henderson v. United States, 175 Ct.Cl. 690, 701 (1966). This conclusion is that much stronger when, as here, there is a strong likelihood that these violations have actually been prejudicial. There is a disagreement in the record, for example, about the exact nature of the doubt expressed by VanderMolen. Appellant claims in his affidavit before the district court that he objected only to “the use of nuclear weapons on civilians,” whereas the Summary of the Faculty Board Proceedings records a broader objection “to the release of nuclear weapons or CB agents.” There is some support for VanderMolen’s affidavit in the form of a letter written on June 16, 1970, by Colonel Walker with reference to the AFR 36-3 action then initiated against VanderMolen:
When Lt Vandermolen first began counseling, it appeared he was confused and had given only superficial thought to the extent of his moral objection. Although he made his objection to the use of nuclear weapons quite apparent, he was not able to articulate his specific reservations. His initial objections were vague and difficult to pinpoint. However, as counseling continued by various members of the instructor staff, Lt Vandermolen became more capable of communicating explicitly his specific moral objection to the use of nuclear weapons against civilian population centers. This objection later was expressed quite directly to the faculty board.36
Without a verbatim transcript of the Faculty Board Proceedings it is of course impossible to review its findings. If in fact the Summary of the Faculty Board’s findings mischaracterized VanderMolen’s position, serious prejudice might have resulted. See Cruz-Casado v. United States, 553 F.2d 672, 675 (Ct.Cl.1977).
It follows that the findings of the Faculty Board cannot legitimately have been used as the basis for any subsequent punitive action against VanderMolen. Paragraph 4 of ATC Supp. 1 reinforces this conclusion. Yet these findings were the primary evidence against VanderMolen before the Board of Inquiry that recommended his discharge under AFR 36-3.37 “An action resting significantly on such improper materials . . cannot be permitted to stand. It is, of course, a general principle that an administrative decision, even a discretionary one, grounded in considerations which the tribunal should not take into account, or evidence or materials it should not weigh, is vulnerable as arbitrary and unfounded.” Hankins v. United States, 183 Ct.Cl. 32, 38 (1968).
In Hankins the presence in the record of two invalid OER’s was deemed sufficient to overturn a decision of the Secretary of the Air Force to reject a withdrawal of a resig[627]*627nation. In this case, the findings of the Board of Inquiry must similarly be overturned. Therefore appellant was not legally discharged in 1971. He is entitled to reinstatement in the Air Force reserve and reinstatement on active duty in the Air Force. See Cruz-Casado v. United States, 553 F.2d 672, 676 (Ct.C1.1977). In addition, all reference in his Air Force records to the SDN Code Number, and any and all other reference to AFR 36-3, must be removed, as well as any references to the findings of the Faculty Board at Chanute. Appellant should receive as damages the back pay to which he is entitled from the date of his separation from the Air Force, less appropriate offsets, see Cunningham v. United States, 549 F.2d 753, 758 (Ct.C1.1977); Fee v. United States, 512 F.2d 1383, 1389 (Ct.Cl.1975), the total not to exceed $9,999.99.
III. THE CANCELLATION OF VanderMOLEN’S SCHEDULED PROMOTION TO CAPTAIN
VanderMolen also alleges that the cancellation of his scheduled promotion to captain was illegal and should be rescinded.
The promotion of a military officer is a discretionary act. Orloff v. Willoughby, 345 U.S. 83, 90, 73 S.Ct. 534, 97 L.Ed. 842 (1953). This court will not overturn a discretionary determination of the Air Force Board of Correction for Military Records unless it can be shown that “the Board’s decision was arbitrary, capricious or unlawful.” Dorl v. United States, 200 Ct.Cl. 626, 633, cert. denied, 414 U.S. 1032, 94 S.Ct. 461, 38 L.Ed.2d 323 (1973). “Ratings and promotions are discretionary matters with which the court will continue to be ‘scrupulous not to intervene’ unless clear error is shown or relief is mandated by law or regulation.” Boyd v. United States, 207 Ct.Cl. 1, 13 (1975), cert. denied, 424 U.S. 911, 96 S.Ct. 1106, 47 L.Ed.2d 314 (1976). This is especially true since “[t]he promotion of an officer in the military service is a highly specialized function involving military requirements of the service and the qualifications of the officer in comparison with his contemporaries, plus expertise and judgment possessed only by the military.” Brenner v. United States, 202 Ct.Cl. 678, 693-94 (1973), cert. denied, 419 U.S. 831, 95 S.Ct. 54, 42 L.Ed.2d 56 (1974).
It must be emphasized, however, that this case does not concern an ordinary denial of a promotion. VanderMolen was actually scheduled to be promoted to captain, and his promotion was cancelled for two stated reasons. These reasons were “officer disqualification UP AFM 35-99 Officer expresses objection to use of Nuclear Weapons because of religious and moral beliefs.”38
VanderMolen challenges the first of these reasons, arguing that his disqualification under AFM 35-99 should not have been used as a basis for the denial of his promotion to captain. We agree with him. Paragraph 6 of AFM 35-99 states clearly that:
the assignment disqualification of any member under this manual is not of itself cause for punitive measures or an adverse reflection upon the individual. Disqualification will not be used to justify or to avoid appropriate proceedings under the Uniform Code of Military Justice or under existing regulations on administrative processing or separation of individual members.
To use a disqualification under AFM 35-99 as a justification for the denial of a promotion is manifestly to use it as a “cause for punitive measures” in violation of the terms of the manual.
Appellant cites Grimm v. Brown, 449 F.2d 654, 655 (9th Cir. 1971), for the proposition that if the military proceeds against an individual for several reasons that are “inextricably interwoven,” and if one of those reasons is unlawful, the procedure as a whole is unlawful. See Clay v. United States, 403 U.S. 698, 91 S.Ct. 2068, 29 L.Ed.2d 810 (1971). Grimm, however, is inapplicable to the facts of VanderMolen’s case. Grimm concerned charges against an [628]*628Air Force officer before a Board of Inquiry. In such a procedure the Air Force must follow specific standards and regulations. The promotion of an officer, by contrast, is entirely discretionary. No law or regulation mandated appellant’s promotion. Cooper v. United States, 203 Ct.Cl. 300, 304 (1973). This court “cannot postulate that a discretion to promote would be exercised favorably” if there remains a valid ground for the Air Force to have withdrawn VanderMolen’s promotion. Clinton v. United States, 191 Ct.Cl. 604, 605, 423 F.2d 1367, 1368 (1970). See Yee v. United States, 512 F.2d 1383, 1388 (Ct.C1.1975). We must therefore inquire into the second reason for the cancellation of VanderMolen’s promotion, his objection to the use of nuclear weapons.
Unfortunately, the record is simply not adequate at this time to sustain a determination of the legal validity of this reason. If it is based upon the findings of the Faculty Board, as appears most likely,39 then it is illegitimate, and there are no reasons at all justifying the cancellation of VanderMolen’s promotion. In such circumstances the cancellation must be overturned as arbitrary and capricious. See Bridgman v. United States, 185 Ct.Cl. 133, 137, 399 F.2d 186, 190 (1968). If, on the other hand, the cancellation was based on untainted evidence, such as VanderMolen’s counseling records, we do not think a court should interfere with legitimate military discretion in this area.
Our disposition of the case does not require us to consider appellant’s argument that the Air Force also violated the procedural requirements of AFR 36-3.40
Reversed and remanded to the district court for further proceedings not inconsistent with this opinion.