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Various (depends on map)
Titan Arena is a capture the flag-type game. Items and weapons can be customized. Players take control of a marine each, and have a choice of equipment at the start of the match. These weapons can be upgraded. Three different maps are available to play on.
The mod features a talents system. Both weapons and talents can be altered on the fly. Sizes of matches can range from 2v2 to 6v6. Items such as health packs and grenades can be picked up on the maps. The grenades are powerful, but bounce, and have a delayed detonation.