Well...he shouldn't even have that one submission really :s...Wrestling, kickboxing, nor streetfighter have a set of moves that should give you a submission..unless you meant to type one of those as submissions.
And, while I did and still do think this is an awesome game, I traded it in on the release date of ESPN NBA 2k5 to get that. It was good, but the replayability, while being good wasn't great. I at first thought I would be able to do the story multiple times, just with different people. But I was wrong. While it was cool seeing a completely different person in the cutscenes, it still didn't change the fact that it was the exact same thing..And the arenas...in a way got old to me. Because it's only so long before the 'HOly shit I just through his head through that car window' excitement goes away. So I said what the hell and just got 2k5. If it ever goes down, maybe 15$ there still might be a chance of me picking it up again, but if not, I'll just settle for DJV, SDvsRAW, and the Fight for NY demo I have from a Playstation magazine.