RE: ABC's of Game Cooking? GIVE IT UP & PASS IT ON!
I find that marinating deer meat doesn't cause one to have to go to a lot of trouble to prep it before cooking.
Depending on what you use to marinade, I always stick with simple stuff such as Italian dressing and maybe some Worcester sauce. Then some seasonings and marinate for a couple days ideally.
That simple concoction has always made steaks taste good off the grill.
Otherwise, the loin chops taste GREAT with some melted butter brushed on them and then Old Bay crab seasoning sprinkled on or if you can get it, Wye River black seasoning. I think they only sell the Wye River on shelves here in Maryland, but I know you can get it online. Wye River seasoning changed the way I eat deer meat forever. The stuff rocks!
Melted butter and sprinkled crab seasoning on loin chops placed on hot grill and cooked no longer till pink/reddish in the middle. BAM!!