What is the best sniping class on mw2

Its up to you use the best sniper that works for you but I prefer to use
Name: One Shot Kill
Barret 50 cal.
PP2000 (Red Dot Sight)
Tactical Insertion
Stun Grenade X2
Sleight of Hand Pro
Stopping Power Pro
Steady Aim Pro
Final Stand

Because with this class its really easy to get the 'Ghillie In The Mist III' Get 500 One Shot One Kill that's what this class is for.