Re: [aqx99] Army Regulation 615-360
The Army library at the Pentagon had a section that kept all the old army regs. I haven't visited the place in many years but it did in the 1990's. When I was an active duty JAG in the USAF many years ago I was able to retrieve a 25 yr old AF reg. The old regs exist someplace. You might try a Freedom of Info request to HQ Army. They probably won't respond favorably but if they claim it is a historic document not subject to FOIA they should tell you where you can get a copy. You can also try the National Archives.
You might consider, re-enlistments or enlistments were probably quickly processed in Jan 42 (one month after PH) without too much scrutiny. Over the years about 90% or more of all soldiers discharged get Honorable Discharges. This includes soldiers that had company punishment (AW 104, current UCMJ Art 15), other disciplinary problems not rising to this level, and in some cases courts-martial of various levels. In this sense "Honorable Discharge" is not a badge of honor but a bare passing grade. I say this to suggest that your relative's discharge papers may not hold the key to discovering the true nature and character of his service. You may have to dig a bit deeper to find the 'rest of the story.