Before 1st game every player MUST pick what map pool he want play: only Main (5 maps) or with Additional maps (7 maps). One pick for all tournament - not for each game! By default the map pool for all players is Main.

If both players want play Additional maps, then map pool for game is all 7 maps. But if at least one player pick only Main map pool, then map pool for game is Main map pool (5 maps) only.

If somebody pick Main map pool only, but reported game with maps from Addition map pool, then these maps will be removed and players MUST play other maps instead to finish game.