Rejoin as Germany.
My opinion:
Technology should be dealt with similar to the likes of EU4 so it isn't suPER loving TediosUSS AS forget.
Administrative, Diplomatic, and Military points can be used to go to the next tech/whatever level, to avert disasters, to gain/lose medals or ribbons/jairo's mega gay bonus system, to gain stuff, to gain stability, etc.
Every day (OORP), great powers get 20 "power points", secondary powers 10, and the other friends 5-9 varying on their WORTH.