Weapons

The main weapons in Left 4 Dead are divided into two tiers. The first is available to every Survivor when the scenario starts. Weapons in the second tier can be found throughout the maps and at the end of the scenario, just before the final fight. All weapons can be used to melee Infected with in close combat, pushing them back.

There is currently no way to distribute weapons or ammunition among teammates. All weapons have an attached flashlight with an unlimited battery, however the flashlight's beam is only visible to the player using that particular flashlight.

First Tier
Each of the Survivors has the choice of starting with one of either of the first tier weapons, but they can switch or restock ammo on checkpoints.

Second Tier
Each of the Survivors has the choice of switching their first tier weapons to one of these on later checkpoints.

Sidearm
Each of the Survivors starts with a pistol.
 * Pistol
 * Dual Pistols (Acquired when a second pistol is picked up.)

Grenades
Each of the Survivors can carry either one Molotov cocktail or one pipe bomb.
 * Molotov cocktail
 * Pipe bomb

Other Weapons

 * Minigun
 * Gas can
 * Oxygen tank
 * Propane tank