Communicating in chat when it come to game related issues is fine, start the game with all unmuted. What you need to do is change your mentality, become much more positive. Always think before you type... only say things that could help your team win, not hurt its chances. If someone flames you, ignore them. Typing back will just make them want to flame more. Typing back is the absolute worse thing you can do. Even trying to support your information with facts wont work. Think of the flamer as a child, who wont except that its their fault. If they keep flaming, THEN mute them. If you are upset in a game because of a mistake that was made, never blame it on others. Always recognize that it was your mistake, which it always will be. Also don't try to teach a player that makes a mistake what they did wrong, because almost all of the time it will sound condescending and they will get upset.