Ok, This game was actually quite good :)
The visuals are nice, the sound is good, the controls are great.
Having a destructible environment is really nice as well :)
It's just that my mouse-finger starter to hurt quite badly from bashing the shoot button all the time :P Maybe add an automatic gun or a hold to shoot option :P
Also, something went wrong with the last mission, I read the whole plot and when I wanted to start the mission I got the fail screen and got booted back to the start screen.