This week Infinity Ward is introducing a new type of perk. Previously showcased perks focused around Special Abilities such as Increased Bullet Penetration with Deep Impact, Increased Rate of Fire with Double Tap, or Increased Reload Times with Slight of Hand. There is another category of perks that focuses less on these Special Abilities and more on Special Weapons.
Special Weapons include things such as C4, RPGs, extra grenades, etc. The first Special Weapons perk IW is going to showcase is C4. C4 doesn't need a ton of explanation - it's a perfect perk for objective game types such as Search and Destroy where you can set traps for your enemy, and for faster paced games like Free For All (Deathmatch) where you can lead your target towards you and blow them up with well placed C4.
To show off the perk in-game, Infinity Ward decided to load up a Free For All (Deathmatch) and Team Deathmatch game on the Playstation 3 and just blow the hell out of the level. Keep in mind, the actual perk only gives you 2 C4 per spawn, so you have to choose your usage of them wisely. C4 is great for setting traps, especially since vehicles are fully destructible in multiplayer. As you can see in the first part of the video, Infinity Ward planted some C4 on a car, lured the enemy up to it to take cover and sent them flying. The rest of the video is a montage of death showcasing the many ways to take out enemies using C4. IW went from planting it on the run, to planning an attack, to catching their enemies off guard by throwing C4 over the wall in the direction they're heading.