Best CSGO Settings For High FPS And Performance 
Steam Community :: Guide :: Binding Commands/Chat Messages
Then change it to ' Yes.
Some are also for setting your CS:GO server or for playing with bots.
This will make your graphics very vibrant.
Overextending can cause you to get killed in enemy territory, and your team can get on your case for dropping the bomb in an unlikely place, turning the round into Mission Impossible.