In order to get this map you have to go to Siberia. In the place where you find Katarina, walk until you get to the room with the two staircases on the right and the left. Go up any staircase and, once you get to the top and destroy the enemies, go to the very right and crouch down. Go into the hole, scan the blue object, and you will get the map to Precipice, an online multiplayer map. Also there is a blueprint for the TPC Launcher in a different room in Siberia.