According to the official Call of Duty 4 forums, if you open the "iw_02.iwd" file (from the PC demo) located in the folder "MAIN" with Winrar, you'll see all the weapons that will be available in the final version of the game.
Click here for a complete list of weapons from both the Single Player and Multiplayer game modes.
Call of Duty 4: Modern Warfare marks the series first transition to a contemporary modern day setting, featuring a host of modernised weaponry, equipment and vehicles to utilize in combat.
The game has so far been highly praise for its incredibly realistic visual offering, bringing to life the grim, harsh realities of urban-based combat as you infiltrate a number of highly-detailed and fully destructible battle zones.
Look out for our review next month.