From what I heard they do in house tournaments among themselves for that… have you ever seen them play ? Explains all the fireteam buffs the game had since it came out.
Then the server data logs for win and losses, thing is if the Predator blows up instead of defusing it doesnt count as a FT win on the servers, which is another thing that gives them the wrong impression about the win/losses rates of FT and Predator. Since lots of FT that win choose to not defuse cus they dont want to waste time killing AI to secure the body.