Definitely a reenactment. Camera crews are not allowed to tag along with tactical patrols in the battle field now. You get embedded reporters, but actual video coverage is few and far between. The biggest give away to a reenactment is the view though the sniper scope. 1) it’s a vignette (an overlay type of cropping a piece of video in post production. and 2) if the camera was looking through the scope…..the sniper wouldn’t have been. Any reporters that are present with a patrol when insurgents show up are commanded to get down basically and lay there and follow directions until the crisis has passed. Rule number one of anything that is even remotely documentary-like you fake it to make it.