The title pretty much says it all. I've played prime almost exclusively for the past few days with a heavy focus on kill steaks and gotten 0 medals. I have almost 13k kills with reaper aura, ~85 wins. Twice as many as the other "triumphant" triumphs. It shouldn't take that long and it should be something you can achieve without tanking your entire play style. If you keep such things you should be able to review my combat logs from the past few days. It is all Gambit prime.
Hey there MochiKing. Appreciate your report about this. If you could provide a link to a video of a recent game where you felt that you should have gotten the Massacre medal but didn't? It may help us in an investigation.
I can't say it's completely broken because I've managed to get 2 in the past week but I wonder if it's buggy. I have 78 Void Based Demolition medals (Nova Bomb) but only 11 Massacres since Gambit came out. I would like to know how many kills it takes to get Void Based Demolition because I see that after almost every Nova Bomb I throw but the Massacre just doesn't seem to happen even if I keep killing ads.