I think you will do this:

You will take 500$ and give your prediction of game.
If game ends as you predicted, than everyone will win and you will take that 500$.
If you fail to predict the game, everyone will lose money and you will just return 500$.

Your story is one big lie.

Guys don't fall on this trick. It's the same shit as all the other "pm me for fixed game" posts.

Just got 1 question, as your friend is going to 'troll' his teammate, but what if their team still can win?
AFAIK, CS:GO is 5v5, so his member(s) maybe still can carry his team even he is trolling, who knows.
so will you get the money/investment back from ur frd if really his team win at the end?

Still nothing convincing that you will not just run away with 5 x $50 investment for information of a possible rigged game. Since, first off you are a newbie in this forum, you have no trust to really back up what you are saying. If you offer something like this, then you will likely get turned down. Probably if the guy you are talking about would agree to escrow the fund then people will likely join your soiree.

Thats what im thinking too on which hes friend might belong to a third tier type of tournament because sabotaging a particular game on $500 isnt to convincing for me thats hes a good player and he must be on the top tier and paying up for fixed matches are too risky we wont know if he would sabotage or not because plans will really change or shall we say he does have plan with other guys want him to win the game. How about that?

If the Op is telling the truth then I am sure that his friend is well aware of all consequences of throwing a match.
No one will be so stupid to throw a match for couple hundreds dollars, when prospect of longer career is an eventuality.
So I expect this is some 3rd grade team, already doomed to lose all the matches they play, so the odds would be really bad.

I think it better to have escrow in middle, how we can trust you with our 250$ and also even if that dude play bad there could be other players who can possibly play well or may even kick out your dude if they detect unusual behavior.

Can you post odds that we can win if your dude's team loss.

Either ways he gets fucked.If he plays even slightly less than his team's expectations,he gets fucked by his team members and that means no more  CS:Go in the tournament again.That also means he will have a very hard time getting accepted in other teams as people will have credibility issues with him.Don't let him fuck up his gaming career for a few bitcoins.

So you are saying that your friend will sell the game for money? Well it has happened before even in real sport games like basketball, soccer and other sports. I just don't support it as it actually will just destroy the value of the player or team. But if its just like occasional, then it would easily pass for a bad game.

Do you have any more information regarding this tournaments? Is it listed in nitrogensports for betting? Are you talking about fixing match by bribing your friend to play like noob?  

Wait a second.
It is hard to understand, if you mean playing CS:GO profesionally, on tournaments for money, or you just mean betting on the result of the match.
I assume that you mean the second thing, because in other case you wouldn't post here, I guess.

So, I have been basically doing some kind of that gambling, it is all about which team is going to win.
Most of the sites use CS:GO skins as a currency, every one of them has some value, so you bet the skins, and you get the payout in different skins.
There are also some websites that just use regular money, but to be honest, I dont know any casino from that kind.