Offline play using FAF not keeping ACU upgrades
The issue with ACU upgrades was fixed in the last M28 release
M27AI and M28AI developer; Devlogs and more general AI development guide:
https://forum.faforever.com/topic/2373/ai-development-guide-and-m27ai-v71-devlog
https://forum.faforever.com/topic/5331/m28ai-devlog-v130