Monster Mash (Part 1)
|Complete Where Angels Fear to Tread||27||Dr. Zed (Sanctuary)||3274 XP, $959, Assault Rifle or Grenade|
Since you just agree to do whatever is asked of you, Zed wants you to collect some creature parts for him. In particular, he needs four Spiderant parts, which will drop from any spiderant once you have this mission active. One of the better places to get this done is The Dust, as there are a lot of spiderants there (the game will tell you to go there). Once you have all of the parts, return to Zed to finish.
Monster Mash (Part 2)
|Complete previous mission||28||Dr. Zed (Sanctuary)||3491 XP, $1074, SMG or Grenade|
This mission is similar to the previous one, except you need the parts of two completely different creatures. The first one up will be Rakks, with the game directing you to Arid Nexus - Boneyard. Head to the waypoint and keep your eyes on the skies to spot Rakk. Once you have the four parts, you will now need to go after skags. Lucky for you, some can be found very close to where the Rakks were. After getting the skag parts, head back to Zed to finish.
Monster Mash (Part 3)
|Complete previous mission||28||Dr. Zed (Sanctuary)||6983 XP, 4 Eridium|
Zed has finished with his projects and is now in need to eliminating the results, so head to Arid Nexus - Boneyard and get ready to hunt down some Skrakks, a hybrid of Skags and Rakks. Go to the waypoint and just go to town on the flying monstrosities, as you need to kill 20 of them. You can probably use a vehicle to get all of your kills, as it might be a little safer than being on foot.
After cleaning up the Skrakks, the mission updates with you having to kill Dr. Zed's Abomination, which is something called a Spycho, a Psycho-Spiderant hybrid. You'll have to travel to Frostburn Canyon to find it, where it will be in the Frozen Ant Lake section of the map, above ground. This thing can be a little nasty with its ground pound attack, as it can knock you back pretty far. Once you defeat it, return to Zed to finish the mission.