eh, thought this would help me get the achieves easily, but wah, after calculations, i still need something like a mil credits to get all the upgrades.

1 mission = 60k, need to play it 17 times then only can max? @_@

hm... first time i came to know abt this, because I always thought that once you earned the research point from 1 particular mission ,it's consider "sold out" and cannot increase again if you replay it...