Saints Row The Third Walkthrough Part 16 – Trojan Whores
Call Shaundi to start this mission. She is angry because someone is throwing a party, Pierce. Head back to the Penthouse Crib.
After the cutscene the party breaks down into a gun fight. Keep killing anyone pointing a gun at you or any of the Saints. Try to get up and stay on the second level. This gives you a vantage point and helps you protect Pierce a little better in case he gets in trouble.
When Zimos mentions a light show outside it is time to deal with some snipers. Head to the room on the left-hand side of the penthouse and go out on the balcony. There you will get a Sniper Rifle and it is time for some fine point shooting. Now head to the left, out of the room then keep working your way up to the roof itself.
The first one is slightly to the left on the building directly across from you.
One is to farther to the left and up on the next skyscraper above you. Another will spawn after you kill that one.
Another is to the right perched the skyscraper to the right of that one. There is a second sniper on the far right part of the same ledge.
There another on the building that is two over on the left. She has a lower angle than most so she is likely the last one you will kill.
Once you get them all, you need to head to the maintenance room. Head off the roof and take the stair well down two levels. Head into the darken maintenance room. Head to the left from there and interact with the generator to get the power going again.
Reload and head back up to the main level. Olef will call, informing you there are Helicopters incoming to interrupt the party in progress. Head up the second level, right-hand side of the penthouse. On the piano, close to the front windows, you will find your anti-aircraft weaponry. The windows will likely get blown out while you grab it.
Head out onto the balcony and blast the two helicopters closest to you. Dash to the back of the penthouse balcony and blast two more Helicopters that come at you. One more helicopter will rise from the back and swing to the front. Blast it out of the sky to finish out this mission.
This mission cashes out for $8,000. You will also receive a Gunship for your own personal use.