how do i know if i’ve been banned?
When you log into halo 3 you will recieve a ban message and it wont let you play matchmaking.
Well I believe there are two types of bans. Ones a total ban from matchmaking, the other is an EXP ban. In either case, it should notify you.
You will be notified when you start Halo 3. As above post states there are 2 different bans