Stop Motion
I know you were going for the frenetic feel or it at least appeared that you were. This makes sense since this is a battle, but it would have helped to frame the shots a little better. The herky jerky, shots out of frame, etc. detracted a little from the film sometimes. It got better at the end. Lighting could be improved a little (night scenes still need a little illumination of the characters). It kinda of looked like the Marines guys were just faceless. I know a lot of painting goes into miniatures. Maybe more lighting after the battle. Something to better highlight the Marines. I know it's hard to accomplish in this instance, but it would help a little bit. Definite potential. I wouldn't mind seeing more.