Nice video
. Gameplay looks good, and I like the lightmapping.
Criticisms:
-I'd make the blood splatter slowly fade away fairly quickly after it goes on the screen. I think it should just be used to show you got hit rather than actually obscure your vision.
-Instead of just lowering the field of view to zoom, do that and move the gun so you're aiming down the sights.
-Play the dying animation of the guys you kill more quickly. This might be intentional to be "slow-mo", but in order for that to work well, you'd need to slow everything down, not just their dying animation.
Good job so far, looking forward to more.