Complete a 4-player Competitive Co-Op match in 1st place over Xbox LIVE. (Online co-op only) - Call of Duty: World at War
Complete a match in Competitive Co-Op mode over Xbox LIVE. (Online co-op only) - Call of Duty: World at War
Complete a match in Campaign Co-Op mode over Xbox LIVE. (Online co-op only) - Call of Duty: World at War
1,979/2,7511,075/1,50049/66
1,187/1,1871,000/1,00015/15
3,620/3,6201,000/1,00032/32