Well...
...it watched a lot like a video-game.
This would in fact make an awesome one, it looks very much like a game to me, so do the actions etc.
As I movie though it didn't make me feel involved, it was like as I say, watching someone play a video game, the same camera angle, enemy-appears, enemy is dispatched style of thing. No ducking, no real trouble for our main character, no good look at them, no idea of who/what they are.
I dunno, I guess you need to establish a character, do a few different camera views to break it up a bit, things like that.