I'm personally a stealth fan. Being able to sneak around the battlefield unseen is an extremely useful tactic. It's even better if you know what weapon you're best with.
Primary: G36C- Silencer (Any rifle or smg that you are best with silenced)
Secondary: Any pistol other than the Desert Eagle- Silencer
Perk 1: Bomb Squad- Its important to try to get rid of anything that may end up killing your team, especially Claymores
Perk 2: UAV Jammer- You could fire silenced all you want, but if the enemy gets a UAV, you aren't stealthy but now a target
Perk 3: Deep Impact- I mainly use this perk just so I am able to shoot claymores more effectively
Primary: G36C- Silencer (Any rifle or smg that you are best with silenced)
Secondary: Any pistol other than the Desert Eagle- Silencer
Perk 1: Bomb Squad- Its important to try to get rid of anything that may end up killing your team, especially Claymores
Perk 2: UAV Jammer- You could fire silenced all you want, but if the enemy gets a UAV, you aren't stealthy but now a target
Perk 3: Deep Impact- I mainly use this perk just so I am able to shoot claymores more effectively