Do I lose the perks from Officer Training School when I destroy it?
When I have every upgrade from the Officer Training School, can I tear it down or do I need to keep it, in order to keep the Upgrades/Perks?
Solution 1:
XCOM wikia says: "Removing the facility will cause all officer upgrades to cease functioning. Do not remove. The upgrades are not lost and can be reactivated by rebuilding the facility."