I personally want CS:GO rules, but a bit more relaxed since Halo games tend to not last as quick.
Quit once: 10 minute ban
Quit twice: 30 minute ban
Quit three times: 2 hour ban
Quit four times: Day ban
Quit five times: 7 day ban
...
Quit once: 10 minute ban
Quit twice: 30 minute ban
Quit three times: 2 hour ban
Quit four times: Day ban
Quit five times: 7 day ban
...