Team Deathmatch-Levels is a gamemode very similar to TDM, but in this gamemode, you get a weapon upgrade after a kill, leveling up.
You start on level 0 which is a TEC-9, and after killing an opponent with that weapon you get a new one, a Deagle, and so on and so forth until level 11, which is a RPG.
After killing someone with the Minigun, you reach level 14 and finish the game.
You are then moved to a cage where you can punch to death the other opponents who have reached Level 11 too.
One of the cool mini-games in this gamemode is "No Man's Land (Cowboys versus Bandits)" figthing on a bridge over a big canyon in a western style scenery