RavenCube

Breaking down Call of Duty 4: Modern Warfare

Part 1: Blue Perks

Perks give you a "special powers" when you equip them and basically here is the list of the perks available in Call of Duty 4: Modern Warfare

1st Perk class (blue)

C4 x2

C4 remote explosives. They will stick to ceilings and walls when you throw them, so you can make traps with these. Detonates with C4 remote controller or when you double tap 'Use' (F) button.

Special Grenades x3

Gives 3 Flash/Stun Grenades when you equip it. Smoke Grenades unavailable with this perk.

RPG-7 x2

Gives RPG-7 with 2 rockets. Effective against helicopters and group of people. Rockets detonate by impact.

Claymore x2

Gives 2 Claymore mines. Explodes with a little lag after someone gets in range. Effective in narrow corridors and serves as a door guard.

Frag x3

Gives 3 Frag Grenades. Does good job combined with Sonic Boom perk.

Bandolier

Gives extra ammunition magazines. Good perk if you want to shoot a lot with out worrying to pick up guns after couple of clips.

Bomb Squad

Gives the ability to see explosives, like C4 and Claymores. With Deep Impact perk, you can effectively remove explosives behind walls and stuff.