It's okay. The 3 round burst sniper rifle hurts it a lot, and if the sky is blue where does all the red come from?
Also, the AR's sounds don't match the animation, and I think it would have been better without them anyways. The AR has a weird model, the shotgun has too small of a barrel for the grenades it 'shoots', and the scope on the sniper rifle is not good.
The fire grenade is pretty nice though, even if it does explode a bit too quickly.
Also, the pistol reload animation is poo.. he misses the gun.
So, I think you should focus more on the theme of it instead of just a bunch of random tricks you can do that really aren't that special unless you use them the right way.
it reminds me of call of duty 3. anyways i think the assault rifle needs a bit of work. and the shot gun needs a new skin other then that gj ANd i really like the flame grenade, thats something i would like to know how to do:):):)