You forgot Anti Dote ahhahahahahhaa, and yes its a common weapon.
These are the most common weapons and stuff. Mods adds new weapons which makes them better than these, but it depends on the maps.
HANDGUNS:
GLOCK: 12/48
Very fast firing handgun, however it's a weapon where you can't shoot limbs off. So simply aim for the chest. Does good damage, large clip, and is accurate and reliable.
44. Magmum: 6/36
Most reliable weapon in the game, can blow off limbs and in most mods will kill a zombie with a single shot to the temple. Slow firing, extremely high damage, the weapon is a great tool.
44. Magmum Lite:
Same as above but with a flashlight
RIFLES:
22. Rifle: 4/48
Worst gun in the game, slow, takes a full clip to kill a zombie, terrible weapons. However, most mods will make the .22 a reliable weapon with it being able to kill zombies with a headshot or two.
Shotgun: 4/32
Does the most damage, single kill for anyone or any undead that is around 3-5feet away. Slow reload, slow firerate. One of the best weapons in the game.
Shotgun Lite: Same as above with a flashlight.
M16A1: 30/80
Best rifle in the game, fire rate is fast with it being able to to rip off limbs with a single shot. However, the game company fucked it up. As they added 10 rounds to the normal 20/80. Which means you have an abnormal amount of ammo.
M16A1 Lite: Same as above but with a flashlight.
.30-06: 5/120 (OP much?)
Rifle that is slow firing but is able to be accurate at both close and long range with it shooting off heads like it's Christmas.
MELEE:
Fists: You was born with them.
Golf Club: Longest reach, weaker than the baseball bat.
Baseball Bat: Favorite weapon, knock the shit out of zombies and people who gets in your way.
Fire Axe: Best melee weapon in the game. Slow and is able to rip off limbs and head with ease.
Pipe: Slow but does heavy damage.
Hammer: You wanna die?
Chuck Norris Fists: You can kill zombies with five-six extremely rapid and powerful punches.
Items:
Molotov: Throw, watch things burn.. unless it's you of course.
Nades: Make big boom-boom.. run away.
Pills: Wanna get high? Heal 25% with these.
Medkits: Health yourself 100%+
You forgot Anti Dote ahhahahahahhaa, and yes its a common weapon.