I dunno how I didn't get 7th column here nor do I know how I did it but I got 2 6 man's in a row, Pantheon, 3 Praedyth's Revenge headshots, 3 down on arcbolt & Last Word combo, then popped a bladedancer and pushed into their spawn and killed them all again, why they all spawned right next to me I will never know (Bungie's broken spawn code) I think the time in between the 6th n 7th kill was too big for it to have been a 7th column, still an amazing run that will never happen again