Modern Warfare 2 Icon
|Tier||MW2: 1, Black Ops: 3|
|Unlocked at Rank||MW2: 4 (Create a Class), Black Ops: 4 (Create a Class)|
Marathon is a perk appearing in two Call of Duty games; Call of Duty: Modern Warfare 2 and Call of Duty: Black Ops. It allows the user to sprint for a longer duration. In Modern Warfare 2, it allowed unlimited sprint from the start, whereas in Black Ops it had to be upgraded to Pro before unlimited sprint was possible.
 Call of Duty: Modern Warfare 2
Marathon is one of the first perks you can use at the start of the game. It is in Tier 1. When equipped, it gives you unlimited sprint. This perk is a better version of Extreme Conditioning, which was seen on MW and WaW.
 Pro Version
To unlock the pro version of this perk, you've got to sprint 26 miles with it equipped, once upgraded, you'll be able to climb over objects faster.
 Call of Duty: Black Ops
In Black Ops, Marathon is a Tier 3 perk. It costs 2000 Cod Points and is unlocked from level 4. It doubles sprint duration.
 Pro Version
To upgrade to Pro, a player must sprint 26 miles using Marathon, get the first blood medal ten times and get the flag capture medal 15 times. The Pro version gives unlimited sprint. It costs 3000 CP to upgrade.
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