I don't know if the other platforms or games have this problem, but Damavand Peak is never a map when I play Conquest on the xbox 360. My Primus playing guide shows it has a Conquest map, so what's the deal?
I primarily play Conquest, and played Damavand Peak several times over the weekend.
Try using the Server Browser under the Multiplayer menu to find a game that meets your map & game type preferences versus "Quick Match"
Below is a screen capture from Battlelog.Battlefield.com