1,250 points and unlock the door to Equipment Storage — there are two doors on the opposite side of the Courtyard from Ravenov. In the door room, go upstairs and you’ll find the active portal. Step #2: Activate The Aether Reactors You’ll drop into Helipad. There are Aether Reactor costs 500 points to activate. Once an Aether Reactor is activated, you need to defend it and charge the collectors with zombie kills. There are 3 hardpoints you need to protect in each room — so be prepared before activating any of the reactors. Once the charge meter is full, the reactor will ignite and wipe out any nearby zombies.