What is the best sniper class in mw2

Primary: Barrett 50 cal thermal scope or Intervention FMJ
-Secondary: M93 Rafrica
- Akimbo
Equipment: Tactical Insertion or Claymore
Special Grenade: Stun, Flash, or Smoke (whatever you want)
Perk 1: Sleight of Hand Pro
Perk 2: Cold Blooded Pro or Stopping Power Pro
Perk 3: Steady Aim Pro or Commando Pro
Death Streak: Final Stand (this is what I use for death streak, but its up to you)

Hope this helps!