



Though the evidence locations within each mission are fixed, for every player, the clues you are given and the answers you need to find for the puzzle itself are random for each player. Once you have found these collectables, you then need to review them back at the safe house to solve a puzzle and access the mission in question. This requires you to find hidden evidence in the main set of story missions. Operation Red Cirsus is an optional side-quest in the campaign of Call of Duty: Black Ops - Cold War.
