Get your 2x credits regardless of having a booster. However if you have a booster its 4x(ish)! There is a infested defense on pluto I was doing that takes about 5 min. Just need a Speed Nova, Gmag and a Mesa. It yields 92,000 (with credit booster). Did a T4I, that game me 104k ish. Good stuff, I got modding bills to pay!
LoL I've been drinking for the last two days and somewhat busy today as well. Grrrrrrrr I want my double credits!!!
I managed to put myself back over 2 mill again, too bad at least one of that is going into primed flow =/