Primus (First in Latin) is the callsign of a CLAW that is seen at the beginning of the Call of Duty: Black Ops II mission "Judgment Day". His counterpart is Magnus. While advancing to the facility, it is most likely that both Magnus and Primus were destroyed by the Mercs. It is possible, with some support from the player, to protect Primus and ensure he isn't destroyed by the enemy.

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