After I got he base kills, I just stopped using kinetic and energy GLs. I played crucible a decent amount and I just always had a GL equipped. I used either play of the game or prospector depending on the whether I had an exotic slot open. A lot of other people used colony but I didn’t like it for double kills as much.
Only problem there is power stealing but I guess I'll go into comp with colony
Yeah for me it was a very passive grind, and I know you’re looking to get it done but that’s what worked for me