Call of Duty: World at War was Treyarch's first game in the series since the underwhelming Call🎅 of Duty 3, and it managed to deliver the grimmest and goriest game the series had ever  or🎅 has ever  seen.

Call of Duty: Black Ops is a military first-person-shooter, and the average level of🎅 violence in multiplayer and campaign slightly greater than most first person shooters. While there is no explicit gore in multiplayer🎅 (just blood), the level of violence in the campaign can get quite strong and graphic.