Fast knife (2x speed)
Fast saw (3x speed), but it seems have old damage... Need to fix later.
Pistols with physical bullets (+5 dmg, 2x speed, physical)
Fast shotgun (+2 dmg, 2x speed)
Electric double shotgun (+6 bullets, +10 dmg, electric)
Danger Tommygun (+10 dmg, physical)
Fast minigun (+10 dmg, 2x speed, physical)
Mega Rocket Launcher (+100 dmg, rocket, speed control)
Plasma launcher (+500 dmg, falling, plasma)
Laser zorg (+30 dmg, explosive)
XRAY Flamer (+40 dmg, x2 velocity)
Electric RailGun (One shot - one kill)
Meteor Gun (10000 dmg, Meteorite!)
Demonstation of all modern weapons you can see in this video.