
Leaving during a game day is never advised. It leaves your team with a bad taste in their mouths about players that just up and leave. As FM's or Admins we take our time in picking teams that are going to be fair for everyone. If someone leaves it throws everything off balance.
Rule of thumb. If you must leave early on a regular game day leave at lunch and tell someone. don’t leave in the middle of game play.
during milsims, if you can’t commit to the SIM in its entirety, it’s not advised you show up to play. Sims generally run for 6+ hours with no breaks so when people leave it gets very frustrating.