"Sub-Level 13" Missions vs "Who You Gonna Call?" Achievement

[DALCOhstangultion]

To get the "Who You Gonna Call?" Achievement, we have to complete the "Sub-Level 13" missions with 3 other players. Does that mean that at least one of the players has to have NOT completed the "Sub-Level 13" missions (and, I assume, be the host of the game?)? Or, is the quest some kind of special "repeatable" one? Or, if *I'm* trying to get the Achievement, does that mean that *I* have to have not completed the mission?

[Felipe]

The host must have the quest and complete it in a party of 4 players, the difficulty dont matter (is not repeatable in the same difficulty, so i advice you to skip it until you have the other 3 players). If you already completed the quest alone in normal mode, you can still get it in TVHM or UVHM.

[DALCOhstangultion]

Thanks. That's what I was afraid of. I've already done it solo in Normal and TVHM. Looks like I'll have to make a copy of my save files (just to make sure) when I get around to my UVHM run.

[DALCOhstangultion]

I also wonder if the 4-Player Difficulty Tool (or Slider) by Willow Shrubbery:

http://myborderlands.com/FourPlayers.aspx

would let a person get this Achievement solo. I know it can be done with something like Sandboxie and running 4 instances of the game. But, I've never seen any comments about this tool.

[Elvarion]

Slider tool will make this achievement pop
https://www.reddit.com/r/Borderlands/comments/2kffsn/pconly_guide_unlocking_who_you_gonna_call_without/

You dont need to use Sandboxie to run 4 copies of this game, just browse to the pre-sequel.exe in the installation folder and run it from there as opposed to just clicking play from steam

[DALCOhstangultion]

I decided to try Sandboxie. But, I couldn't get it to run the Pre-sequel (under Windows 10). All kinds of Sandboxie errors. So, I tried just running multiple copies of presequel.exe. Unfortunately, that didn't work either. Instead of running another copy of Steam that I can put into Offline mode, it just runs the original instance of the game in the original instance of Steam. Oh, well.

[DALCOhstangultion]

I'll also confirm that using the above mentioned 4-Player Difficulty Tool let me get this Achievement myself. I first had to go through and edit my save game with Gibbed:

http://blog.gib.me/2015/10/31/borderlands-the-pre-sequel-save-editor-revision-39/

I had to go to its Raw tab, open the MissionPlaythroughs collection, look at the LastVisitedTeleportName in each MissionPlaythroughData entry until I found the correct playthrough. Then I opened that one's MissionList and scrolled through until I found both Sub-Level 13 missions. For each of those, I then clicked the big red X to delete them.

After doing that, I started up the Pre-Sequel and continued the game, ALT-TABbed out and ran the 4-Player tool, had it scan, set the slider for 4 players, then ALT-TABbed back into the game. I picked up the mission again then ran through it and got the Achievement. Yay.

BTW, I picked up my remaining co-op Challenges and Achievements with the Nucleus Co-Op tool:

https://github.com/lucasassislar/nucleuscoop

(you get it by going to Code -> Releases, downloading the latest version from there, extracting it and running NucleusCoop.exe). That's a whole lot easier way of setting up a split-screen session than anything else I found.

[Snoup Sniddly]

Originally posted by DALCOhstangultion:

I also wonder if the 4-Player Difficulty Tool (or Slider) by Willow Shrubbery:

http://myborderlands.com/FourPlayers.aspx

would let a person get this Achievement solo. I know it can be done with something like Sandboxie and running 4 instances of the game. But, I've never seen any comments about this tool.

Sorry to Necro, but do you still have that tool on your PC? That website you linked is down, and other available versions of the slider don't seem to work with the presequel :|

[DALCOhstangultion]

Hopefully I've uploaded the version I have (1.2 from 2014) to Google Drive correctly and sharing it here is allowed:

https://drive.google.com/file/d/1335_QdnSkRjajOYrFicNgbUrK0ISWcF9/view?usp=sharing

It's a pretty old tool, so I don't know if it will still work.