Cheating on cod4? 
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I'm eagerly waiting for upcoming vac bans but it seems to me it'll only damage the professional scene even further.
Will surely make sponsors think twice about associating their brand to an individual player or team.
Hey don't judge, I was a kid back then. And the last year before cod4 promod scene died I played clean as I matured up

And well, honestly, I don't see future in eSports in FPS genre, as long as a game is FPS oriented, there will always be cheaters in it, professional scene included. I mean heck, there are hackers in almost any popular game, it just only goes twice as far, as far as shooters go
If I were a sponsor, I would never look for a cod/bf/cs/quake etc team, the chance of a) my players cheating b) enemy team cheating making my players unable to win is just too high. Not to mention, you have to manage unstable angsty teens living under one roof which I can't think of one story of a team that lasted longer than 3 years without internal issues. It will take good 10 years before eSports scene is no longer that fragile and becomes properly organized and becomes a respected sport in modern society.
The only place I can think of which has professionally integrated scene is South Korea for SC II and League of Legends (They never were into Shooters). But at the moment, other games, be it in Europe, North America or any other place are too unstable to invest in, unless you are a serious esports enthusiast and got money to throw around.
I mean, in Korea, it's big corporations like SK Telecom, Samsung, Jin Air, KT Rolster behind teams, not small shady organizations founded over night and western e-sports got hell of a chasing to do, to even get remotely close to stable and functioning infrastructure in gaming.