Call of Duty 4 is a pretty freaking sweet PC game, and a blast for LAN games. The problem with LAN games is that if you have a relatively new install of Call of Duty 4, you are at a disadvantage. One neat thing about the game is that as you play multiplayer matches, you unlock new weapons and perks. A player who recently installed the game cannot use these weapons or perks.

For some reason, the makers of Call of Duty 4 did not include a way to play with all weapons and perks as part of their game. After some research, it seems as though the only way to accomplish this is via mods, namely the PAM4 Mod. The following configuration works with the latest version of Call of Duty 4 (currently 1.7), and is taken from Team Warfare League forums.

1. Download the PAM4 mod for Call of Duty 4 (aka CoD4).
   < ?php showfile("pam4.zip"); ?>
2. Extract to {game_dir}/Mods/pam4, creating the directory. So the directory structure should look as follows:

   {game_dir}/Mods/pam4/mod.ff
   {game_dir}/Mods/pam4/pbbans_lg_none.cfg
   {game_dir}/Mods/pam4/pbbans_lg_twlcod4naladders.cfg
   {game_dir}/Mods/pam4/pbbans_lg_twlcod4naleages.cfg
   {game_dir}/Mods/pam4/pbsvlog.cfg
   {game_dir}/Mods/pam4/README.txt
   {game_dir}/Mods/pam4/ReadMe1.txt
   {game_dir}/Mods/pam4/z_srv_pam401.iwd

3. Open the game and enable the mod. If you’re using dedicated, read this or this.

And that’s all! Works great. It should not have been this hard to find, btw.