The initial stage of Operation Cobalt was initiated three days after the initial outbreak began in the U.S.A., with the deployment of military units into major urban areas (such as Los Angeles, California or Atlanta, Georgia) after the outbreak overwhelmed local law enforcement. Military in order to contain the spread of the infection. In The Walking Dead, Operation Cobalt is the name given to the plan devised by the U.S. Operation Cobalt is an apocalyptic total conversion mod based in The Walking Dead universe, using Ravage and ACE3 as a base, and attempts to portray the efforts of the Military in Roleplay, Milsim, SP, Co-op, and even PVP environments with its included missions and content. I'm sure we can all agree there is a lack of 'good' FPS/TPS games based in The Walking Dead universe, with very few that even give a glimpse of the Army/Gov in action.