Instructions
Travel upstairs from the Ascension map's starting area and turn right. This will lead you to the largest lunar lander area.
Go through the large gates across from the lander pad and enter the door to your right. Travel up two flights of stairs to reach the top.
Look for the power switch when you reach the top. It should be on the wall to your right. Use your Action button to flip the switch.
Travel to each lunar lander spot after you have activated the power and activate each of the landers to ride them back to the starting area. One lander is at the center of the map, one is next to the rocket at the very top of the stairs, and one is next to the junkyard area. Ride them one-by-one back to the starting area. You'll know you've done it correctly because riding the last lander in will turn the rocket symbol on the ceiling from red to green.
Retrace your steps from Steps 1 through 3 to go back to the power switch room. Launch the rocket by pressing the switch again.
Travel to the rocket's launchpad after it has been launched. Explore around the base of the launchpad, including a room that was not previously opened. This is the Pack-A-Punch room. Use the Action button to upgrade whichever weapon is in your hand. Each upgrade costs 5000 dollars.