does that help
Under no specific tip
If you're going to include missions that involve stalking/finding and maybe screenshotting certain people/a person, make sure that person is available at same time most (best would be all, not always possible) participants would be able to log on at. If not, include a schedule or approximate times so the participants would know what they're getting into and can't complain.
Under no specific tip, idk if this counts
State how often or specific times the participants will have to read / check the thread, or if you will notify each participant personally. If this is posted it will minimize the amount of work for you (event work & complaint work).