As I told Mark, that USAF one's bogus.
1 - We would never let a slick sleeve or any other trainee actually hold a weapon outside of a training room or a rifle range. And we surely wouldn't let anyone have a rifle where it could get dirty.
2 - We don't do assault courses. We've a "confidence course", but I don't remember any barbed wire or anything that might actually cause an injury.
3 - We sure as hell didn't do it with an actual helmet on.
4 - Face paint? Are you serious? We don't need any damn face paint as we're repairing planes. The planes want to see us, no camo needed.

That's the kind of shiat that we send Army and Marine pukes to do.