Left 4 Dead

The guns used in the upcoming videogame Left 4 Dead [Information obtained from playing demo]

Kimber 1911

A Kimber 1911 is the primary handgun of all the players, if a second one is obtained, they can be dual wielded, but the second one does not have a flashlight. Oddly enough, the weapon has a 15-round magazine

Ithaca 37

An Ithaca 37 with a flashlight clipped to the end of the magazine is one of the weapons the player can choose from the level's start [First Tier]. Oddly enough, it has a short magazine, but still has an eight round magazine capacity. Another oddity, the weapon has a Remington logo.

Uzi

A Full-sized uzi with a 50-round magazine and a flashlight taped to the hand guard is the other First Tier weapon.

M16A1 w/ A2 Hanguards

The M16A1 w/ A2 handguards with a 50-round magazine and a flashlight clipped to the barrel is a Second Tier weapon. It is called the M16A2 in game, but it is capable of fully-automatic fire, and does not have a removable carrying handle.

Benelli M4 Super 90

Another Second Tier weapon, the Benelli M4 in-game has a 10-round magazine and a flashlight clipped to the barrel right in front of the handguard.

Ruger Mini-14

A Ruger Mini-14 is one of the most realistic weapons in the game, it has a scope, 15-round magazine and a flashlight.

Molotov Cocktails

Exactly what the name says it is, it sets a small portion of the floor on fire for a few seconds, anything that wanders too close will be lit on fire.

Pipe Bombs

A Pipe bomb is the games equivalent of a grenade. It has a fuse, but cannot be cooked for some odd reason. It is incredibly effective against basic zombies, which are attracted to it. Tanks however, the one thing that you might need to use it against, runs away from it, and the long fuse doesn't help.