You know, firing into the horizon in front of them. You know, to make it seem more action packed and more, what's the word, more mobile. Because if these guys are advancing into No Man's Land, then you would imagine the lead tank firing into the enemy forces to soften 'em up.
If you don't care and just want to kill stuff, you might be a heretic. If you believe that a river of blood is only PG, you might be a heretic. If you have a burning sensation of hatred when you lop off someone's head, you should be ok. That comes standard.