Dreamhack will be the latest tournament organizer to bring back Dust 2 into the active tournament format. They will, however, bring the map back after the Dreamhack Summer qualifiers. The decision to bring Dust 2 into the active map pool was made after a push by the Game Publisher, Valve. They have replaced Cobblestone with Dust 2.
Due to recent map pool changes from Valve the maps used for the Valencia and Summer Qualifiers will differ:
DreamHack Open Summer Qualifier Map: Cobblestone
DreamHack Open Valencia Qualifier Map: Dust II
We are sorry if this causes any inconveniences. pic.twitter.com/Ev7oL79pn5
— DreamHack Counter-Strike (@DreamHackCSGO) April 26, 2018