I wasn't referring to helmets (I didn't even notice any were on backwards), I was referring to Marines facing the opposite direction from the direction of the enemy, watching the backs of the other Marines.
A gaggle like that is expected when fighting in a city, but it's real easy to get behind someone in a town like that, so good Marines would have someone facing the other direction just in case.
Oh OK yeah I get it, especially since I did it in my previous diorama "Hue". I didn't think I needed it with this being a street scene and the Marines now know where the enemy fire is coming from. But again thanks for the critique.