Earn Free Credits Each Day -
During the map menu area where you have to select a location to travel
to (Hanger, Mechanic, etc.) Rotate the right analogue stick clockwise as
many times as possible, you will start moving upwards. The higher you
go, the more credits you will gain. You will gain 10 credits then 100
and lastly 1,ooo credits all in a day. You can repeat this trick only
once a day earning a total of 1,110 credits each day.