War Games

War Games is the official Competitive Multiplayer mode of Halo 4, which pits players against one another in adversarial combat training in simulated environments in the advanced combat deck of the Infinity. However, due to the emphasis on the SPARTAN-IV commandos, players will not have the option to use Sangheili soldiers for their multiplayer character.

343 Industries is aiming to provide a "brand new experience" in Halo 4 multiplayer. This includes a reworking of the series' traditional balance system. For example, the player progression system will be more extensive, allowing players to choose between various modifications which have an effect on gameplay, in addition to aesthetic armor permutations similar to the prior games. Players will also be able to customize their loadouts, being able to choose between various armor abilities as well as new customizable features, known as Support Upgrades and Tactical Packages. Tactical Packages offer a small performance boost to a chosen gameplay feature, such as the player's shield or weapon carrying capacity. Support Upgrades function similarly, and feature such improvements as motion tracker upgrade and an increase in the player's maximum ammunition. Halo 4 also introduces a new gameplay enhancement feature referred to as "Specializations". Specializations unlock different armor sets, emblems, visor colors, weapon and armor skins, and armor mods, which work similar to tactical packages and support upgrades. It has also been stated that multiplayer gameplay will be "much more fast-paced, more intense and visceral" than in the prior games. Weapon pickups on maps will be marked on the player's heads-up display, and players will be able to call in ordnance drops, containing power-ups or weapons, during War Games or Spartan Ops matches. Some multiplayer gametypes include Slayer, Infinity Slayer, and Regicide. Power-ups available in Infinity Slayer include Overshield, Damage Boost, and Speed Boost.

Gametypes
The following is a list of gametypes which are included in War Games.
 * Slayer
 * Infinity Slayer
 * Capture the Flag
 * Grifball
 * Oddball
 * Regicide
 * Flood
 * Dominion