there are ways of doing it true to life, while still being acceptable. you can give hints at wounds and death with damaged equipment, gear, or the way the soldiers are posed.
keep in mind that gore doesn't tend to be all bright ketchup red. often it darkens down, and is absorbed into the earth and debris, making it difficult to pick out. ive seen a diorama of a dead soldier with one leg missing. the wound is totally exposed and can be easily seen in the dio, but its hard to pick out. subtlety tends to be more powerful than open guts, body parts everywhere and blood covering the ground. that just makes it look like a scene from the movie
From Dusk til Dawn, (horror flick). for instance, take a look at the movie
Black Hawk Down. granted it is a movie, and is subject to all kinds of hollywood influences, but in the one scene where a man is blown out of the back of a truck from an RPG, and he lost basically his whole lower body, the gore is very limited.
my point is, you don't have to pour blood over your dio to be true to life, and you also dont have to take the gore out completely either. this might sound very weird, considering the subject, but being subtle with it can actually add to the drama of your piece, and the realism. my best advice is to take a look at picturesof actual firefights, and their after math. base it off of that. Im not sure how much this has helped, but i hope it did to some degree. NEway, post up some pics of your work when you get it going.
-Matt