Special Ops/Modern Warfare 3

Call of Duty: Modern Warfare 3
Special Ops returns in Call of Duty: Modern Warfare 3, and includes Survival Mode, where the player must survive against increasingly difficult waves of enemies. Survival Mode can also be played on all multiplayer maps, sometimes with minor modifications to maintain balance. Presumably, these modifications are meant to prevent players from exploiting easily defensible positions. Spec Ops will also provide objective-based challenges similar to those in Call of Duty: Modern Warfare 2. It supports up to two players, both online and split screen, and now has its own matchmaking system.

Mission Mode
These missions are split into 4 tiers of 4 missions, each tier requiring a specific rank level in Spec Ops to access. All missions, except for Stay Sharp and Charges Set, have 3 levels of difficulty to choose from. Missions marked with (*) must have two players in order to be played. Mission Mode is not available in the Wii version of Call of Duty: Modern Warfare 3.

Tier 1: Unlocked at start

 * Stay Sharp
 * Milehigh Jack
 * Over Reactor
 * Hit and Run

Tier 2: Unlocked at Lvl. 5

 * Toxic Paradise
 * Firewall*
 * Fatal Extraction
 * Hostage Taker

Tier 3: Unlocked at Lvl. 10

 * Charges Set
 * Resistance Movement
 * Little Bros
 * Invisible Threat

Tier 4: Unlocked at Lvl. 15

 * Server Crash
 * Smack Town
 * Flood the Market
 * Fire Mission*

Content Pack 3

 * Black Ice
 * Negotiator

Content Pack 5

 * Kill Switch
 * Iron Clad

Content Pack 6

 * Arctic Recon

Content Pack 7

 * Vertigo

Content Pack 8

 * Light 'Em Up
 * Special Delivery