"Battlefield 2142 is a first-person shooter video game developed by Digital Illusions CE (DICE) and produced by Electronic Arts (EA). It is the fourth game in the Battlefield series. BF2142 is set in the 22nd century, during a new ice age which sees two military superpowers – the European Union (EU) and Pan Asian Coalition (PAC) – battle for survival.
The game was designed primarily for multiplayer gameplay, allowing a maximum of 64 players on a server or a maximum of 16 players in single player mode against bots on Conquest mode. It has its own ranking system to keep track of the user's stats similar to the one used in its predecessor, Battlefield 2. It also opens up new categories of vehicles and weapons not seen in Battlefield 2. Battlefield 2142 has an unlock system allowing the player to choose a new unlock every time they achieve a new rank rather than making them purchase the item. EA Games has also released a booster pack called Northern Strike, which contains new maps, unlocks, and vehicles.
Battlefield 2142 includes two gameplay modes, Conquest and Titan, the latter of which can only be played online in multiplayer maps (without using mods). Both modes support varying numbers of players, up to 64, depending upon the server a player chooses to join online. The single player mode consists of a maximum of 16 players, which includes 15 AI bots.
Battlefield 2142 features 4 different playable kits. These kits can be selected at any time, and the player will get them when they spawn. The kits are a bit of a combination of the kits in Battlefield 2, which had seven playable kits, which were less customizable/upgradeable. Each kit has different weapons and equipment that are unique to that kit. Each kit contains a basic weapon, secondary weapon, and a knife (with the knife differing to Battlefield 2, as when a player is killed with a knife, the killer acquires the player's dog tags.) The player is able to gain rank, options, and equipment by gaining points in the game. Battlefield 2142 now has customization, allowing the player to gain more unlocks using the one kit which makes it more effective. Each class has two unlockable weapons and one passive unlock which upgrades the soldier's helmet, each helmet upgrade having different functions. The benefits of one soldier's helmet upgrade will also be shared with his or her squad mates.
* Assault: The Assault and Medic classes from Battlefield 2 are combined as the Assault kit in Battlefield 2142. The main weapons are assault rifles with unlockable rocket or shotgun add-ons. Other unlocks include advanced first-aid kits which can be deployed to restore the health of anyone standing close to it, smoke grenades for screening, and a defibrillator for reviving fallen comrades. The Assault kit has helmet upgrade that allows the user to determine what type of kit the enemy soldier is using, and assigns the appropriate icon above the "enemy spotted" marker.
* Recon: The Sniper and Special Forces classes from Battlefield 2 are combined as the Recon kit in Battlefield 2142. The main weapons are sniper rifles, while there is also an unlockable carbine for close-range encounters. This class can unlock a variety of explosives, including APMs and remote-detonated RDX charges, both of which can kill infantry upon detonation, and the latter can also be used for destroying enemy vehicles, assets and strategic objects (SAT Track, UAV, Orbital Strike and EMP Strike). Another unlockable item is the Active Camo system, which makes the user 90% invisible to other soldiers, but if the user gets too close to an enemy, the user can be easily spotted because of the electronic and static sounds the Active Camo system creates. The Recon kit's helmet upgrade increases the time the "enemy spotted" marker stays on the HUD.
* Engineer: The Anti-Tank and Engineer classes from Battlefield 2 are combined as the Engineer kit in Battlefield 2142. The default weapon for this class is a directable anti-vehicle rocket launcher. Other unlockable main weapons include a high-velocity anti-tank rifle lacking guidance systems and an anti-air missile launcher with guidance systems. The equipment unlocks include motion-sensitive anti-vehicle mines, a vehicle repair kit, and a defusing device for enemy explosives. While the other classes carry a pistol as their sidearm, the Engineer class has a submachine gun to compensate for its lack of an anti-infantry weapon. The Engineer's helmet upgrade works similarly to the Assault kit's, but identifies and assigns icons for vehicles instead of infantry.
* Support: The Support class from Battlefield 2 remains fairly unchanged for the Support kit in Battlefield 2142. The default weapon is a light machine gun. Unlike other weapons, this machine gun becomes more accurate the longer it is fired. Other unlockable main weapons are a heavy machine gun and a shotgun. The equipment for this class includes ammunition hubs, deployable sentry guns, a sonar device to locate enemy infantry (Northern Strike only), EMP grenades (useful in revealing nearby enemy Recon soldiers using their Active Camo), and individual deployable energy shields. The Support kit's helmet upgrade passively spots any enemy within a certain range that starts using the Active Camo. The cloaked enemy's marker will appear on both the HUD and the mini-map, and both will track as long as the enemy is within the Support's line of sight."
Source: Wikipedia, "Battlefield_2142," available under the CC-BY-SA License.