Strike Chain



The Strike Chain System is the replacement for the Killstreak system in Call of Duty: Modern Warfare 3. In this system, killstreaks have been replaced by pointstreaks, and the term "Strike Chain" describes any chain of three pointstreaks.

Overview
In previous Call of Duty games, players were able to choose up to three different killstreak rewards, and were awarded them after killing a certain number of enemies in a row without dying. Those killstreaks were independent of the player's custom classes. In the Strike Chain system, however, killstreaks have been replaced by Pointstreaks, which are awarded to players for accumulating a certain number of points. Another difference from past reward systems is points being gained not only by killing opponents, but also for shooting down air support, and completing objectives, such as capturing a position in Domination.

Pointstreaks are divided into three Strike Packages - Assault, Support, and Specialist. Strike Packages are attached to custom classes, and a Strike Chain can only be formed from pointstreaks from the same Strike Package.

Assault
The Assault Strike Package includes pointstreak rewards more suited to inflicting damage on opposing players. When using this strike package, kills acquired through pointstreaks give points toward newer pointstreaks, and all accumulated points are reset when the player reaches their last pointstreak, or when the player is killed.

Support
The Support Strike Package includes pointstreak rewards more suited to assisting the player's team. When using this strike package, kills acquired through pointstreaks do NOT give points toward newer pointstreaks, and all accumulated points are ONLY reset when the player reaches their last pointstreak; not upon death.

Specialist
In the Specialist Strike Package, players choose perks to be awarded instead of pointstreaks. When using this strike package, the perks are given to the player at 2, 4, and 6 points, or 1, 3, and 5 with Hardline. The player may place any additional perk (excluding Overkill) at any place in their Strike Chain. In addition, if the player reaches 8 points, or 7 with Hardline, they are awarded every remaining perk in the game, again excluding Overkill. Every applicable proficiency for any weapon the player is using will be awarded to one (besides Damage, Breath, or Attachments, unless already equipped). All benefits are lost on death.

M.O.A.B.
The M.O.A.B. is a hidden pointstreak reward obtainable with any strike package. Obtaining it requires 25 kills in one life (24 with Hardline). Once called in, there is a ten second countdown, after which it kills every enemy player, and causes an EMP effect for the opposing team for one minute. The team, or the player in Free for All, that deployed it also gains double XP for the rest of the match. The M.O.A.B. is the spiritual successor to the Tactical Nuke. However, unlike the Tactical Nuke, the M.O.A.B. will not end the game. It should be noted that the M.O.A.B. can only be acquired with direct kills from the player, not by shooting down air support, completing objectives, or getting other kills with other pointstreak rewards.