"Congrats! Your S-Rank, now your fired!"
Japan really needs to stop using this tactic. It was nice for the first 20 novels, but now it's just an annoyance.
If the MC is a tactician and Logistical support, then he's a must on the team. True, barking order can get annoying to the frontliners, but what the frontliners don't see, are those that happen on the "Sidelines".