Add-ons / skins how to open? (War for the Overworld)

Hello everyone,
In the main menu there is an item with additions, for example, different shirts for workers, or different wall skins, and different conditions for opening, such as participating in a beta or pre-order, or in general to complete all missions in 10 minutes.
You need to understand that in the game itself, it is just closed, and information about the result is stored (as I understand it) in the stats.ini and achievements.ini file,

if you manage to open it, write, share.