Well, I personally don't mind if you wear makred BDUs if they belong to someone(I use my fathers DCUs at games, and they have airforce ranks and markings on them). I wear my issued(I have about 6 pairs) BDUs that only have my name, and US Army on them, but you'll never catch me with ranks or earned patches(air assault, airborne, ranger, ect). But, I am in the military, so I have sort of earned them. You, are not, so if you were to do the same thing, it would be frowned upon. I suppose...