Well, heres the problem. When the army began to demobilize many men did not go home with the outfits they served with during hostilities. There were many reasons for this. Sometimes a unit had a lot of high point men (look at the bottom of the discharge for his ASR score)andthey went home and the newer guys with less points were transferred to other outfits. So in other words the man in question could have served in a high profile unit like 4th Armored but end up being transferred to something no body ever heard of before being dischrged. I have a feeling that is what happened here. The unit he was attached to in this case earned 3 battle stars which would be applied to his campaign ribbon/medal for the ETO.I am afraid that unless he remembers all his former outfits or someone has a roster with his name on it, you may never know the "real" outfit he served with.
To make matters more complicted, men being discharged were very often impatient and not interested and getting everything they ever did on the paper - they just wanted the discharge so they get home and on with there life.
Also, I say this respectfully, if the man was an MP the whole war - he couldn't earn a Combat Infantry Badge - it is reserved for Infantry MOS's only. As far as the Bronze Star goes, there are two types a general Bronze Star and one with the "V" device. If he won a Bronze Star with "V" device this would be easy to find because there were orders issued, I believe at the division level and these still exist. However, years ago the Army made the descision to upgrade all holders of the CIB and Combat Medic Badge (from WW2) to Bronze Star because WW2 combat was so terrible. But if he didnt get the CIB then that upgrade woulnt apply here. The Bronze Star was also authorized as ageneral posthumous award. (One of my cousins was killed and got the CIB and two posthumous bronze stars - one for the CIB and the other for getting KIA'd)