Due to the game's anti-tamper check triggers, starting the game executable directly from its folder without Steam running sometimes forces the game to treat the save as an unverified copy. On some older versions, doing this caused the tech tree to completely wipe and refund all points upon loading a mission. Technology Tree Progression Guide (Edited)
Based on our analysis, we recommend the following:
Tip: Before resetting, check online for “essential campaign techs” – you’ll probably need fewer resets that way.
