Call of Duty Black Ops Cold War's operation Red Circus has captured of the attention of anyone trying to fully complete the campaign. This is another option side mission that is similar to Operation Chaos. This article does contain spoilers, so consider yourself warned.

To start, you'll need to gather three pieces of information across other missions in order complete operation Red Circus. The information you find to complete the mission is unique to each player, so be aware that your information will differ from others.

The first piece of information is a wristwatch containing a dead drop list. The wristwatch can be found in the Server Room during the first section of the "Desperate Measures" mission. The wristwatch will place three different suspects at specific locations.

Prepare for payback.

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Call of Duty Black Ops Cold War Operation Red Circus: How to Find All the Suspects

The next piece of information can be found on a desk just after entering the SATCOM building during the "Echoes of a Cold War" mission. The tape can be used to determine the genders of the possible subjects.

The last piece of information you need is Franz Kraus’s Ledger. The ledger can be found in the below-ground apartment during the sneaking section of the "Brick in the Wall" mission. This ledger will give you dates and locations for the suspects that you need to mark.

Using all of these pieces of evidence you’ve found, you can determine who the suspects are. First you narrow the list of suspects from the Wristwatch, and eliminate anyone who isn't mentioned in the Ledger. Finally determine the gender of the suspects named in the Cassette, and you'll be able to get your three suspects.

Once you mark all of your suspects, you'll be able to start the mission and move along knowing you'll be on your way to fully completing the campaign.