Check that flat-top upper very carefully. I don't want to say more just yet, maybe I'm seeing things wrong.
Will wait for others more knowledgeable to weigh in.
No headgear.
The strap in an awkward position. It appears to be around his neck and not looped. Like it’s on a tether.
The M4’s rear sight is folded down. No issue with that.
No Kevlar but sometimes they’re told not to wear them on patrol -it upsets the locals. But he should have a cover.