Lightweight, one of the first perks. You can also use Marathon to run faster.
Use the sleight of hand perk.
Call of Duty Modern Warfare 2: Scavanger Call of Duty Black Ops: Scavanger
You use the sleight of hand perk.
jugg and slight of hand
The closest thing is the scavenger perk. There is no infinite ammo.
Call of Duty 4 Modern Warfare: Extreme Conditioning Call of Duty World at War: Extreme Conditioning Call of Duty Modern Warfare 2: Marathon Call of Duty Black Ops: Marathon
Call of Duty 4 Modern Warfare: Sonic Boom Call of Duty World at War: Sonic Boom Call of Duty Modern Warfare 2: Danger Close Call of Duty Black Ops: None.
Call of Duty 4: Deep Impact Call of Duty World at War: Deep Impact Call of Duty Modern Warfare 2: FMJ gun attachment Call of Duty Black Ops: Hardened
The Juggernaut perk on Call of Duty gives you increased health.
Get "Warlord" or "Warlord Pro" perk.
It aims for headshots whenever you aim down your sights
Yes, they can. The perk camouflage only protects you from the Spy Plane from sensing you.