Based on the Tom Clancy book series of the same name,
Rainbow Six is an elite counterterrorist unit. Their primary duty is to clean up the bigger messes in political hotspots around the world.
Rainbow Six 3 follows along the same lines as its predecessors. Although it plays like a first-person shooter, the entire game is steeped in realism. You can't run around and take clips full of ammo before dying. Instead, one or two shots can kill you, which means you'll have to rely on quick thinking, teamwork and a quick trigger finger to get the job done. Unlike other shooters, you're limited in your firepower -- really limited. You can't pick up weapons dropped by downed tangos (enemies), so you'll have to plan out which weapons you bring with you on a mission beforehand. You also have access to thermal and night vision goggles and an on-screen map.
Rainbow Six 3 features an extensive variety of play modes. The core mode is the Campaign Mode. Here you play as Domingo 'Ding' Chavez through a linear, single-player campaign. The story is well done and is pure Tom Clancy, featuring South American terrorists and more political intrigue than a Congressional barbeque. With your team of Rainbow Six operatives, you'll travel all over the world and storm diverse settings ranging from run-down villages, to a mansion and even an airport. Missions range from extraction, to hostage rescue and even a bomb scare. A 'custom mission' option is also offered that allows you to go back to any previously played mission and take on randomly spawned enemies.
Since the original pretty much spawned the team-based multiplayer genre, you would expect to find a number of multiplayer options in the game. Rainbow Six 3 features both online and offline modes via the Network adapter and Two-Player split screen. When compared to the Xbox version, the Online mode leaves much to be desired. Like other elements in the game, online options have been stripped down and gutted. Online games only support 6 players (the Xbox has 16) and there are only 3 play modes (Xbox has 5). One of the biggest losses is the option of online co-op play; a move that just doesn't feel right at all. Instead we're left with 3 variations of deathmatches, two of which are the same thing, only in solo and team flavors. This takes away from the entire Rainbow Six experience and turns the game into little more than a realistic Unreal Tournament.