I don't know if I'm ever going to have a Crota HM kill. Tried using destinylfg for it last night, after not trying hm Crota for a few weeks because I was so burned out on trying the HM event. Took us about 10 tries to just get past the knight/acolyte glass wall phase without someone dying. Finally do so and swordbearer calls for rockets and I'm the only one that fires on time. The rest of the guys have ghorns but all fire at different moments within a 5 second window. Was awful. Tried a few more times but the same couple of guys kept dying to the acolytes so we never even made it to Crota himself more than once or twice.
Probably was just bad luck with the group, but I felt so frustrated being the only rocket guy there really without a Ghorn, the only guy there without a HM Crota kill, but I seemed to understand the execution of the event better than the rest (other than swordbearer). and honestly, I don't understand the HM strategies all that much...until last night I had always just been the wall puncher on our RR attempts.
Guess I'll just wait for reset and keep plugging away at NM. I only really want to do HM Crota once so I can say I did it and hopefully get the scout rifle and call it a day.