Has he tried asking what the Lady Sailors use to remove makeup from their clothes, lets face it some of the stuff these women plaster on their bodies means Camo cream should be a piece of cake to remove
That him that contrary to what you expect, Camo cream will come off his face best if he uses COLD water, and Wet Wipes are also a good ploy. As for the T-Shirt, he should have been given a couple. Keep one for best and one for dirty work. If he needs both for kit muster, then get to stores and suck it up and buy another. Couple of quid deducted from his pay. Sumo is also right, I have a bottle of Acetone (Nail polish remover) for oily type stuff.
I failed my first muster Dee , then all kit was laid out on bed counterpain , bloke next to me also got a re-scrub and he giggled...Div Chief got hold of 2 edges of counterpain and yanked it above his head , kit everywhere.