From Wikipedia:
Combat ArmsCombat Arms is entirely a multiplayer game with no single-player mode, and contains 4 game modes: Elimination (Team Deathmatch), One Man Army (Deathmatch), Search & Destroy (Bomb mode), and Capture the Flag, and as of now consists of 9 maps: Warhead (factory), Pump Jack (oil station), Snow Valley, (a missile launch site in the middle of snow-covered mountains), Gray Hammer (power station), Junk Flea (desert junkyard), Cold Seed (snow-covered mine), Two Towers (communications tower), Brushwood (a small jungle map, with a down plane hideout), and Sand Hog (unknown map coming october 1st). Players who start a room, (known as the Room Master) are able to choose the map, game mode, set score and time limits, and controls the weapons other players can use or not use, (for example, Melee only, or No sniper rifles allowed). Players are able to obtain in-game money known as gear points (GP) and experience after a match, allowing them to rank up and buy new weapons and equipment, such as armor, uniforms, and backpacks for their persistent characters. There is a rental system of equipment instead of actual purchases of the weapons and gear. The rental periods are 1 day, 7 days, 30 days, and 90 days, each rental period costing more in-game money.
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