Modern Warfare 2 Icon
|Unlocked at Rank||MW2: 9|
 Modern Warfare 2
The Hardline perk is a new addition to the series. Using this perk mean your killstreaks require 1 less kill.
 Pro Version
To achieve the pro version, you've got to get 40 killstreak rewards, whilst using the perk. Once you have unlocked the pro version of this perk, your deathstreak will require 1 less death.
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