Note that the "Champion Edition" includes content up to the start of Season 5. Characters released later (like Luke, Akira, Oro, Rose, and Dan) must often be unlocked separately or by grinding Fight Money in character story modes.
The P2P version generally lacks official server support. However, technical workarounds exist for those attempting to bypass entitlement checks. streetfightervchampioneditionv7010p2pto work
To ensure you are connecting directly to your opponent rather than through an intermediary server: Port Forwarding Note that the "Champion Edition" includes content up