I wouldn't say he can't act.
His last rocky movie had a scene with him and his old bastard friend in the meat processing plant where all his emotions start welling up and I thought that was some quality acting.
He just purposely steroetypes himself into action roles because that's what he's good at and that's what makes him money. Why not?
I will say that was soem brutal ass footage, BUT then again, wtf do you think would happen if you got shot close range with a 50 bmg or whatever that was.
This ain't roadhouse. You rip some ones larynx out they are gonna be gushin blood.
Sure it's ultra violent. War and war wounds are gory. Movies generously dumb down what happens 99% of the time.
Looks fuckin badass imho. Go sly go!