The heroic mission of a hunter requires killing 4 demons. The refresh time for demons is 3 hours (kill) or 20 minutes (not kill), which is too long. In a week, a maximum of 56 hunters can complete the tasks, and with failed and disruptive ones, only 20 hunters may complete tasks. Suggest referring to the official WOW and changing it to 20 minutes (regardless of killing or not)