It allows for soldiers to rapidly recover from injuries and allows them to gain bonus abilities or retrain their current ones. The Advanced Warfare Center is a facility in XCOM 2. If you have the GTS you can choose their class there if they are a rookie and they’ll spend a certain number of days going from Rookie to the class you chose. No, classes are random if you level a soldier naturally. Find the Importable folder and look for your character pool bin file.This is what my file path looks like on Windows 10:
From the main menu, click Character Pool, and then Create Character.