- Updated the pack for patch 4.2. No changes seemed necessary.

- Corrected a timing issue where starting under-cities were detected has being unfit for any under-city templates on turn 1, when the Allow Players MCT setting was enabled.
- Corrected an issue where enabling or disabling an under-building via MCT (after a campaign has started) was not correctly enabling or disabling the building.

- Added the aiut_ prefix to the API functions to prevent conflicts with other global functions from other mods.

- This system will now ignore new under-cities created by the Vermintide end-game crisis until the under-expansion phase of the crisis ends.

- Added support for saving and loading campaigns.

- Reworked the entire system. It is now superior to the previous system.
- Added some additional MCT settings. Some only exist after starting a campaign.
- Created an API that will allow this mod to work with modded under-buildings, if the mod authors choose to create under-city templates for this system to use.

Re-saved pack for patch 4.1. No changes made.

- Added MCT integration.

- Created and introduced a sorted_pairs() function that should prevent multiplayer desyncs caused by the game state becoming divergent when looping over a dictionary table.