Tightened weapon sway, nerfed bullet damage (comparable to the default gun).

Forgot to add impulse to bullet impacts.

Added recoil and refined spread mechanics. Somewhat optimized projectile physics.

I learned projectile motion so now I can make the airburst grenades arc. Also added an option to more than double your ammo, and adjusted grenade spread accordingly. Also added spread to the gun with "microbursting" and bullets will now go through nonphysical objects.

Also improved the rifle muzzle flash with the particle API.

proofed code for 0.7