Two zombie escape rooms at Comic Con were created to promote Call of Duty: Black Ops 3. Every element of the experience was produced and looked after, including the introduction video which immediately drew participants into the game’s world, the script and puzzles / flow for each of the rooms, the costumed actors and extensive set design, and the two green screen photo booths where participants could take pictures of themselves escaping the zombie attacks. The activation was open to the public for three days and had an estimated throughput of 2,200 people.