WAH (Warcraft: Alliance and Horde) now released its 2.0 version, it has 4 factions: Alliance, Horde, Burning Legion and Undead Scourge, 30 distinctive heroes and 50+ units. 6 melee maps from Crossroads to Ice Crown for players to fight with each other or AI.
1. Login Starcraft II.
2. Select Arcade and get into the Lobby.
3. Search 'WAH' on the top-right text input and all the WAH maps are listed.