Fucking realism turds.
Perhaps they have better battle experience, maybe the marines are on their first little job and they suck, maybe there are more terrorists off-screen, maybe they ambushed them, maybe the marines just generally are bad at combat, maybe… i can go on. The point is, there are ALOT of “maybe’s” i can say, i wish people would stop with the whole “how, why” in Gmod pictures because pretty much everything can be explained. Just enjoy the image.
(Seriously, i got a reply to one of my pictures saying “Why would that german soldier take cover laying in water during a fight, he’d get trench-foot”… What the hell, he’s in a fucking fight he doesn’t care about that…)
Sorry for this in your thread corn 
On-topic
Is that G-man in the window!?