Well, why not... Another premium beta player here.
First came Exploration back in July 2017 (3303). Mainly achieved through a number of different and random exploration trips concentrating on scanning only first discovered systems.
Next came Trade, in November 2017 (3303). Primarily gained through running delivery missions!
Finally Combat, mid December 2018 (3304). Held off going for it TBH, only fought when attacked, rarely spending time in RES or CZ.
Quite pleased with the kill that actually got me Combat Elite though. Entertaining ship name.