Infected

Infected is a custom game mode in Call of Duty: Modern Warfare 3 started as a private match game mode, and was released to the online community playlist on February 5, 2012.

Gameplay
The game starts with all players being survivors. In the upper left hand corner of the screen, there is a timer that starts with eight seconds counting down to the infected. After 8 seconds, one player is randomly chosen to be infected. The surviving players must hide or survive from the infected. The survivors are the players who are not infected, hence the name "survivors". The survivors spawn with an unknown weapon (depending on what the custom settings are) and must survive by killing the infected or hiding. 100 points are given to survivors every time a survivor is infected. The name given with the points is "Survivor". The round ends when the last survivor is killed/infected and the new round will start pending on a new player to be infected.

Class Loadouts
NOTE: There are many different class loadouts in the Infected game mode. Not all are listed. Survivors Loadouts
 * Primary Weapon: Striker (Extended Mags w/ Damage Proficiency)
 * Secondary Weapon: Five Seven (Akimbo)
 * Equipment: Claymore and Smoke
 * Perks: Sleight of Hand Pro, Quickdraw Pro, and Steady Aim Pro


 * Primary Weapon: PP90M1 (Extended Mags w/ Kick Proficiency)
 * Secondary Weapon: Five Seven (Akimbo)
 * Equipment: Claymore and Smoke
 * Perks: Sleight of Hand Pro, Quickdraw Pro, and Steady Aim Pro


 * Primary Weapon: FMG-9 (Akimbo)
 * No Secondary Weapon
 * Equipment: C4
 * Perks: Scavenger, Hardline, Steady Aim


 * Primary Weapon: Type 95 (Red Dot Sight and Rapid Fire w/ Attachments Proficiency)
 * Seconadry Weapon: Desert Eagle (Akimbo)
 * Equipment: Claymore
 * Perks: Scavenger, Quickdraw, Stalker

Infected Loadouts
 * Primary Weapon: USP .45 (NO AMMO) (Tactical Knife)
 * Secondary: NONE
 * Lethal Equipment: Throwing Knife
 * Tactical Equipment: Tactical Insertion
 * Perks: Extreme Conditioning Pro and Quickdraw Pro
 * Bonus Perk: Lightweight
 * Death Streak: Juiced


 * Primary: USP.45 (No ammo) w/ tactical knife
 * Secondary: NONE
 * Lethal:NONE
 * Tactical Equipment: Tactical Insertion
 * Perks: Extreme Conditioning and Quickdraw
 * Death Streak: Juiced

Trivia

 * If the primary and secondary weapons are not selected, the infected have a USP .45 Tactical Knife with no ammo.
 * Infected players do not have specific models and will appear as human soldiers.
 * If the player acquires Juggernaut, infected players will show a unique Juggernaut armor with a black finish instead of the whitish armor.
 * Just like in Drop Zone, a M.O.A.B. can be achieved.
 * If a M.O.A.B. is called in, and is then transfered to the infected team, the player will lose points and kill their self if they are infected.