This is great! Looks really professional. It seems very smooth on my oldish computer. Says 36fps, but feels like more.
I'm impressed with the shaders. Wasn't expecting them to work on my comp. You've convinced me to find out more about them! The environments look clear and varied, probably owing a lot to the lighting/ glowy shader stuff.
One thing that you might want to fix is the bullet damage decals on the walls. When you shoot a door, the bullet hole decal (and i assume the collision) only occurs when the door is fully closed. Also, the decal does not move exactly with the door- if you open a door with a decal on it, it kind of "jiggles", or lags behing the door's movement or something.
Another thing is with the rocket launcher gun, the fire decals seem to be orientated in the same way all the time, so they sometimes are viewed side-on. You just need to rotate these to the camera orientation, or point them at the camera position.