What are the 11 Executions in gears of war 2 and what weapons do you need?

1. Rude Awakening Lancer + B 2. Meatsnap A, then X 3. Curbstomp Any weapon + X 4. Triple Punch C-C-Combo Any non-execution weapon (shotgun) + Y 5. Snixecution Sniper Rifle + Y 6. Torque Nudge Torque Bow + B 7. Pistolwhip Deluxe Boltok Pistol + Y 8. Boomshield Headache Boomshield + Y 9. Shotgun Golf Shotgun + B 10. Torquapitation Torque Bow + Y 11. Sniper Head Thunk Sniper Rifle + B