There are a lot of different weapons in this game, in this guide, I will rate some of the weapons attributes judging by my experience.

9mm
Rate of Fire: 8/10
Accuracy: 5/10
Power: 6/10
Clip: 8

Kruger 9mm
Rate of Fire: 8/10
Accuracy: 4/10
Power: 6/10
Clip: 8

Lx-18
Rate of Fire: 9/10
Accuracy: 3/10
Power: 3/10
Clip: 18

Revolver
Rate of Fire: 2/10
Accuracy: 3/10
Power: 5/10
Clip: 6

Machine Gun
Rate of Fire: 10/10
Accuracy: 2/10
Power: 6/10
Clip: 32

Soviet Rifle
Rate of Fire: 9/10
Accuracy: 7/10
Power: 8/10
Clip: 30

Sci-Fi Handgun
Rate of Fire: 6/10
Accuracy: 7/10
Power: 6/10
Clip: 16

Plasma Auto Rifle
Rate of Fire: 10/10
Accuracy: 4/10
Power: 9/10
Clip: N/A

Heatseeker
Rate of Fire: 1/10
Accuracy: 2/10 - 6/10
Power: 9/10
Clip: 1

Flare Gun
Rate of Fire: 2/10
Accuracy: 3/10
Power: 10/10
Clip: 1

Rocket Launcher
Rate of Fire: 5/10
Accuracy: 4/10
Power: 8/10
Clip: 6

Brick
Rate of Fire: 6/10
Accuracy: 2/10
Power: 9/10
Clip: N/A

Monkey Gun
Rate of Fire: 10/10
Accuracy: 10/10
Power: 10/10
Clip: 60

Ghost Gun (arcade mode)
Rate of Fire: 10/10
Accuracy: 9/10
Power: 4/10
Clip: N/A

Mini Gun
Rate of Fire: 10/10
Accuracy: 5/10
Power: 9/10
Clip: N/A

Baseball Bat
Rate of Fire: 4/10
Accuracy: 10/10
Power: 3/10
Clip: N/A

Shotgun
Rate of Fire: 4/10
Accuracy: 3/10
Power: 9/10
Clip: 2

Tactical 12 Guage
Rate of Fire: 6/10
Accuracy: 3/10
Power: 8/10
Clip: 8

Dispersion Gun
Rate of Fire: 6/10
Accuracy: 3/10
Power: 9/10
Clip: N/A