Call of duty Modern warfare 3

Campaign
The player assumes the role of various characters during the single-player campaign, changing perspectives throughout the progression of the story. Each level is a mission that features a series of objectives that are displayed on the heads up display, which marks the direction and distance towards and from such objectives. Damage to the player is shown by blood shown on the screen. The player's health regenerates as time passes. Tasks vary in their requirements, having the player arrive at a particular checkpoint, eliminate enemies in a specified location, stand their ground to defend an objective, or plant explosive charges on an enemy installation. The player will be accompanied by troops who cannot be issued orders.

Cooperative
Infinity Ward and Sledgehammer Games have revealed that Modern Warfare 3 will feature a new Survival Mode. Survival Mode features one to two players fighting endless waves of enemies with each wave getting more difficult. Despite being much compared to the World at War Nazi Zombies mode, enemies do not spawn at fixed locations like the zombies do, but instead, at tactical positions based on the current location of the player. The mode will be available on all multiplayer maps in the game and in the mode, players can earn "cash" for items such as weapons, upgrades and ammo.Spec Ops will also be returning from Modern Warfare 2 and will feature up to 48 stars, unlike Modern Warfare 2, which featured 69 stars.


Multiplayer
Infinity Ward and Sledgehammer Games have confirmed that they revamped the entire killstreak reward system. They have stated that while Treyarch had slightly improved the system, it was not enough to make the system feel perfect. Killstreaks are now known as pointstreaks, and kills are no longer the only way to increase the player's pointstreak. Completing objectives such as planting the bomb in "Search and Destory" or capturing a flag in "Capture The Flag" will award points towards the player's pointstreak. Pointstreaks rewards are organized into three different "strike packages" called Assault, Support, and Specialist. The Assault strike package works the same as the killstreak reward system in Modern Warfare 2 and Black Ops, offering rewards like the predator drone and helicopters. The Support strike package offers support-style rewards such as UAVs and SAM Turrets. Rewards from the support strike package do not reset when the player dies, but accumulate over the course of a match. The Specialist strike package rewards players with perks of their choosing after every second consecutive kill. After eight kills, they will receive every perk in the game, but will reset back to none upon death. Players are allowed to choose which pointstreak rewards they want to use when they gain it during the match, rather than choosing them between rounds.

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