Infinity Ward has been hard at work on a playlist update for its hugely-popular first-person-shooter Call of Duty 4, and we could be seeing the results next weekend.

According to Robert Bowling, Infinity Ward's director of communications, the team has an Xbox Live and PlayStation Network promotion in the pipeline for the weekend of September 13th. Exact details of the promotion haven't yet been revealed, but Bowling stated that double-experience points will be on offer for those itching to raise their in-game rank quickly.

More interesting, however, is the fact that Infinity Ward's developers are pushing hard to complete their new playlist updates in time for the promotion - making it all one-big promotion, says Bowling.

Should the team manage to get it done, and certified by both Microsoft and Sony, we could see some of the following playlists next weekend. Be aware, though, that Bowling has stated that the following list is far from final, and there's currently no telling what we'll receive.

Hardcore Headquarters
Testing is completed for Hardcore HQ. This playlist has standard HQ rules w/ Hardcore Settings. Limited HUD, Increased Bullet Damage, and Friendly Fire Enabled.

Hardcore Ricochet Playlist
This is the No Teamkilling playlist. Any damage a teamkiller attempts to do to their team mates is reflected onto themselves only. Therefore, if they attempt to shoot an RPG into the ground at the beginning of the match; the only person who will die, is the Teamkiller. This eliminates the fear of being shot in the back by some asshole, but still encourages players to play tactically and not throw random nades, because if you accidentally hit a teammate, you’re only going to end up killing yourself and they’ll go unharmed. No Teamkilling, No Random Nades. This playlist will include the variant for Hardcore Teamdeathmatch, Hardcore Search and Destroy, and Hardcore HQ.

Sudden Death Sabotage
Sabotage with no respawns. Fast-paced and intense Sabotage. No more hiding with the bomb until time runs out for sudden death. Increased XP per kills to encourage Team Deathmatch mentality. Defend your objective, while attempting to secure the bomb and plant on theirs. Once you’re dead, you’re dead. No second chances.

Second Chance Search and Destroy
Search and Destroy with 1 respawn each. This completely revamps your Search and Destroy tactics. No longer will lucky frag or well-placed claymore end your chance of victory. Each player has 1 respawn, creating longer more thought-out attack / defend strategies. Eliminate enemy players, and cut off their reinforcements while you defuse.

Bare-Bones Team Deathmatch
Team Deathmatch with no perks and no air support.

Hardcore Free for All
Free For All with Hardcore Settings.

Team Elimination (Last Man Standing)
3 round Team Deathmatch w/ no respawns. Switch sides each round.

Multi-Bomb Search and Destroy
Search and Destroy but all attackers spawn with a bomb.

The above additions would certainly spice things up, and we'll be hoping the team gets them out the door soon.