Cool it, guys. You know that mods tend to lock threads that turn into fishy-stick fests.
Well, I got mine so I'll stop. Anyway, I stick by my idea I've presented for this thread. If you do choose to face a human player, they should match your opponent by your stats or the closest to your stats to prevent one sided matches. They would also have to disable any mods (assuming there can be mods) when you enter a PvP arena match, then turn them back on when you leave.
That's the best I could think of. Obviously they wont put any multiplayer in, and I'd be more than happy with that. This is just a supporting suggestion.