The Collection 1 Add-on for Call of Duty: Modern Warfare 3 has 6 achievements worth 160 gamerscore.
Rescue all the hostages in the Special Ops mission "Negotiator."
Complete the Special Ops mission "Negotiator" on Veteran difficulty.
Complete the Special Ops mission "Negotiator" on any difficulty.
Run over and kill 13 enemies with the snowmobile in the "Black Ice" Special Ops mission.
Complete the "Black Ice" Special Ops mission on Veteran difficulty.
Complete the "Black Ice" Special Ops mission on any difficulty.