Kanye West

Weapon: AK-47 (with FMJ)
Secondary: .44 Magnum

Perk 1: One Man Army Pro
Perk 2: Lightweight
Perk 3: Commando Pro

Megan Fox

Weapon: Mini-Uzi (with Rapid Fire and Heartbeat Sensor)
Secondary: Striker

Perk 1: Bling
Perk 2: Stopping Power Pro
Perk 3: Scrambler Pro

Ben Roethlisberger

Weapon: MG4 (with Grip)
Secondary: SPAS-12

Perk 1: Slight of Hand Pro
Perk 2: Danger Close Pro
Perk 3: Scrambler

Britney Spears

Weapon: Riot Shield
Secondary: M9

Perk 1: Slight of Hand
Perk 2: Danger Close
Perk 3: Last Stand pro

Tiger Woods

Weapon: M16 (with Silencer)
Secondary: Thumper

Perk 1: Scavenger pro
Perk 2: Cold Blooded
Perk 3: Ninja pro (If this were COD4 "Dead Silence," would seem like the obvious pick).