I thought they were going to get found out when the guard held the head up next to his head.
“You broke his nose huh? So how come his nose is bent getting hit by a right cross....and your left hand is the one with the bandage?” (Probably could make the dialogue briefer, but you get the idea!)
I also liked the idea of the black guy with Glenn killing his first person through the closed door. Perhaps lessening the immediate impact, until they open the door.
The killing in the sleep wasn’t murder - it was war. The ghastly polaroids on the wall. Was that to say “It’s okay Glenn - you just killed a real bad person”, or was it to say “Join the crowd of killers Glenn”.
Good points.