I'd love to participate in that tourny, but unfortunately I don't have RA 2 at all.
And there's the problem already. How many TS players actually have RA 2?
The other, probably more obvious problem would be that it takes ages to learn a game. I can only speak for TS, since I didn't ever play RA2, but there is absolutely no chance that anyone of RA2 stands half a chance unless they used to play TS competitively at some point.
I hate to be this negative, just throwing in my opinion.