there wont technically be pros in CoD6 in the beginning, everyone will be scrimming against whoever they can find scrims against... it's how it usually works. LoD played and beat some of the teams that ended up being some of the best competitors in CoD4.... that's called playing competitively.
You guys are somehow confusing playing a game competitively with being a professional gamer. I really don't know how it works with consoles, but on PCs you can easily find scrims against organized teams, and host the matches/scrims on a private server, with modified and balanced league settings(most private servers will run the league config which balances certain things out that haven't been patched yet).. simple. Have you ever played on a team before Lex? Because if you haven't I really doubt you'll ever understand how it works. In my opinion, joining a public game isn't "competitive," it's what I do between scrimmages(which i find to be more fun).
Can you even get scrims on a console? Can you even host private regional servers? Can you add mods to them? Are there leagues? I'll admit that it SEEMS like competitive console gaming is gaining popularity, but again.. I feel that's a symptom of a dying PC market(NOT because consoles are better)... besides MMOs
Do I plan on being a pro? No.. I have neither the time nor energy, but I have played on a professional level in the past in Call of Duty.. and it was on the PC.. and we won $ at a major tournament which had 8392589235 PCs and 0 consoles. The top prize was 100K for the winners of the CS:Source tournament. Granted this was maybe 5 years ago, but still.