Counter Strike Global Offensive’s Competitive map pool consists of 6 actively played maps (Active Duty Group) These are the official maps, played by the professionals and well know to the community. Each map has been actively modified by Valve to balance the game play for the ‘Terrorist’ and ‘Counter Terrorist’ players. Without completely changing the maps Valve has managed to find a balanced zone for all these maps where both sides have at least a 40% chance to win a round (depending on the side). This means that every player has a fair ground to play on and contributes to the factor of why CS:GO is one of the most competitive first person shooters.