Nice setup. Will use it when I get xbl but 2 more bloodthirstys and my headaches are gonePlay demolition, spawns are always the same area so no dodgy spawns behind you when you're on a streak and easy to spawntrap, and don't try be a pr0 xXx36O sN1p3rxXx, hold back and play conservative and hardscope.
The set-up I run on my snipers is;
Attachments: FMJ, Fast Mag/Ext mag (depends on the sniper)
Perk 1: Ghost and flak jacket
Perk 2: Scavenger
Perk 3: Tactical Mask
Tactical: Tactical Insertion
the FMJ helps with kills through walls/collateral's, and the ext mag is good for the DSR as it has a small round and Fast mag is good for the Ballista as it's got a slow reload
The secondary isn't really needed if you play well
The Ghost keeps you hidden when the enemy has a UAV up (which is most of the time), and the Flak Jacket protects you from all explosives which is good if you're on a streak
Scavenger is a must to keep your ammo up
Tac Mask is just the best perk in the game imo, never run a class without it, it projects you from all tacticals bar EMPs, which is amazing, don't get why everyone doesn't run it, really helps at close range when people camp with shock charges
And Tact Insertion so you can hold a spawn trap going by having your Tac close to the enemy spawn.
Using this setup I have the snipers diamond, so yh, it works.