Write the text of your article here! EnlargeTeam Fortress 2 in play: a group of RED players attack a BLU base on the capture point map "Well". The player, a RED medic, heals a soldier as he and a scout attack a BLU pyroLike its predecessors, Team Fortress 2 is focused around two opposing teams competing for a principal objective. These teams, Reliable Excavation & Demolition (RED) and Builders League United (BLU), are meant to represent two holding corporations that between them secretly control every government on the planet. Players can choose to play as one of nine classes in these teams, each with his own unique strengths and weaknesses. Although the abilities of a number of classes have changed from earlier Team Fortress incarnations, the basic elements of each class have remained. The game was released with six official maps, although 25 extra maps, 9 arena maps, and four training maps have been included in subsequent updates. In addition, a number of community assembled maps have been released. When players join a level for the first time, an introductory video shows how to complete its objectives. During matches, an eternally dissatisfied woman voiced by Ellen McLain announces various game events over loudspeakers. The player limit is 16 on the Xbox 360 and PlayStation 3. On the PC, a vanilla server can hold 24 players, but in 2008 Valve updated Team Fortress 2 to include a server variable that allows up to 32 players. Third party modifications have made it possible to host up to 36 players on one server.
Team Fortress 2 is the first of Valve's multiplayer games to provide detailed statistics for individual players. They include the time spent playing as each class, most points obtained and the most captures or objectives achieved in a single life. Persistent statistics tell the player how he or she is improving in relation to these statistics, such as if a player comes close to his or her record for the damage inflicted in a round. Team Fortress 2 also features numerous "achievements" for carrying out certain tasks, such as scoring a certain number of kills or completing a round within a certain time. New sets of class-specific achievements have been added in updates, which add new abilities and weapons to each class once unlocked by the player. This unlockable system has since been expanded into a random-chance system, where the player can also obtain the items simply by playing the game. Achievements unlocked and statistics from previously played games are displayed on the player's Steam Community or Xbox Live profile page.
The objective of the game is defined by the game mode in use.
In capture the flag maps, the objective for both teams is to obtain a briefcase of intelligence from the enemy team's base and return it to their own base while preventing the opposing team from doing the same.
Control point modes are more varied in their objectives, but share the common aim of capturing a particular point on the map. In some levels, the objective for both teams is to secure all the points on the map. On other levels (attack/defend), one team already holds all the points and must defend them from the other for a set amount of time. A more complex variation (territorial control), introduced with the map "Hydro", is based on territory: each team must capture the other team's single active control point to secure that section of the map. Once all sections have been captured by one team, they are then able to attack the other team's base directly. In an update on August 13, 2009, Valve included a fourth control point variation: King of the Hill. In this mode, both RED and BLU have to capture the center point and defend it for a set amount of time before the opposing team does. When a team gains control of the point, their timer starts to count down. If the other team captures the point, the former team's count down is stopped, and the latter team's starts. In an update on December 17, 2010, another control point variation, Medieval Mode, was added. In this mode, players are restricted to using melee weapons and bows for combat.
In payload maps, one team has to work to escort a rail cart carrying a bomb along a track through a series of checkpoints, eventually detonating the bomb in the other team's base. The other team has to defend their positions and prevent the cart from reaching the end within a set amount of time. In the payload race variation, both RED and BLU attempt to escort a payload along symmetric (either parallel or opposing) tracks. The payload mode was introduced in April 2008 with the map "Gold Rush"; payload race was released in May 2009 with the map "Pipeline".
Arena is a team deathmatch mode. Arena maps focus on smaller environments and no respawning after the death of a player's character. A team wins in arena by eliminating all of the other side's members in the arena or capturing the map's central control point. Arena was introduced in the August 2008 update.