Operation Outbreak is a map featured in the Battlefield 4: Community Operations expansion that was released in October 2015. The map is set in the Harau Valley of Indonesia, where a chemical warfare research facility is located. Monkeys that were being used as test subjects escaped the facility and caused a panic within the valley, and with information of the incident reaching Chinese and American intelligence, PLA and USMC units are deployed to the valley to seize the research.