Using the key Raquel provided, enter from the south side of the array.
Take the first left and follow the catwalks to the descending metal stairs.
Go down the open metal stairs to the factory/generating room floor.
Optional: If wanting to use Loyal's sonic device, look for a conical pile of trash about chest high. Place the sonic device on the pile and trigger it. This kills all nearby ants inside of the array.
If decided against using the sonic device, then it will be required to personally kill all of the ants in the first room of the generating room floor
In the second area, flip the two array generator switches on the east wall (look for the lights), and kill any ants present.
Flip the final switch, which is halfway down the stairs that was descended to get down into the generating room floor.
Once the three switches have been flipped and all of the ants have been exterminated, return to Raquel to complete the quest
Alternatively: It is actually not necessary to kill the ants as long as the power is turned back on. The Courier can then return to Raquel and lie about the ants being cleared out with a Speech check (55). This will resort in a loss of Karma, but will still award Boomer fame, exp. and will successfully complete the quest.
The Thump-Thump grenade rifle is found in the section east of the ant mound (near a skeleton) on the bottom floor.
There are several shelves of ammunition boxes, and cartons of ammunition in several different rifle and handgun rounds along with two mini nukes on the northern side of the bottom floor right next to the garage door ramp.
Boomer armor, helmets, ammunition, and standard grenade launchers can be found on the first floor by looting the two dead Boomer soldiers Raquel mentioned they lost. An assault carbine and marksman carbine found at the bodies must be picked up manually.
Be careful not to accidentally shoot the howitzer shells while killing the ants. If they are damaged, they will explode, causing an even bigger explosion with the death of any ants.
The catwalk is not high enough to avoid the explosion of howitzer shells below the Courier.
Activating the sonic emitter will kill any ants in the vicinity without them exploding.
The Courier receives credit for killing the ants with whatever weapon they currently have in their hands when activating the sonic emitter. Activating the emitter with a one handed weapon equipped counts towards one-handed weapon kills, etc.
pcps3xbox360 When completing the quest, the terminal near the solar panels seems to magically disappear leaving no trace whatsoever. [verified]
pcps3xbox360 When speaking to Raquel after completing all objectives, the only available option may be "Goodbye", or "See you later.", making it impossible to complete the quest. [verified]
pcxbox360ps3 On occasion, the main circuit breaker switch will not register being activated. The switch will move up and down, but the quest will not advance. Using completeallobjectives 1083de gets the Courier past this. For the xbox360, just simply leave the 3 switches alone, then do a quest for the Boomers and return to turn on the switches after the quest is complete. [verified]