Outpost Simeon - This is one of my personal favorites. It is not particularly difficult even though it is rated Brutal. Virtually any build is viable.
Outpost: Oriskany - again, not particularly difficult. Something of a non-linear arena style. Any build is viable.
Outpost: Endeavor - I would say this one is a little more difficult than Oriskany or Simeon, but for a Brutal level it isn't all that hard. Similar to the other two, this one is non-linear arena style but with less pathways.
Outpost: Meadowlands - I'll let the pictures speak for themselves.
Outpost: Quincy - Industrial complex in the desert.
Outpost: Roanoke The sequel to Meadowlands.
Outpost: Hornbrook - features a golem looking glass sculpture in the center.
Outpost: Calexico - This outpost hosts a horrible secret that is barely skin deep. From the outside it appears to be a nice respite from the desert but in actuality it is a giant monster waiting with it's mouth open just waiting for prey to walk in.
Outpost: Ellenwood - A giant worm has emerged from the desert, wrecking havoc on the environment. Will you be brave enough to put an end to this threat to humanity?
Outpost: Bryn Athyn - Features an aerial combat arena and a twist ending
Outpost: Faunsdale - This outpost isn't currently on social anymore. While I'm not ashamed of it in anyway, I also don't think it lives up to my current standards. Plus they changed the cost on laser mods and I'd have to go back and make a bunch of changes. None the less this one holds a special place in my heart as this is the first outpost Dakkabooms has raided of mine.
Outpost: Moyock - Most of the stuff I have on social is really meant to be fun to play through. Moyock is the exception. This one is legitimately brutal. If you watch the video of Dakkabooms going through it, you should know I've made substantial changes and it is much more difficult. I had a pair of raiders come to this base and spend over 50 minutes in it, died around 50 times each and they still failed to get out with the gen mat. You've been warned.
Outpost: Short Hills - medium sized map arena style.