I'm sure the strat can be refined, and obviously other strats work fine but this strat can kill him with 3 swords every time, easy. Two swords is possible too I'm sure.
http://youtu.be/8CLP2jet0qw
Edit: 1st sword attack starts at ~1:05, 2nd sword at ~3:25, and 3rd sword at the end (where else?)
Pay special attention to the 4th sword combo at ~3:35. It's a six-hit combo that does maybe ~70,000 damage. Crota has <10% health after 2 swords.
I'm not sure I would agree with that.
Crota's fight takes way more communication and team effort than VoG. Of course the hardest job is shouldered on only one guy and it's easy to get mad at him for fucking up but you need to talk a lot more to each other. I've done Atheon on hard countless times with no talking. All you need is people on both pillars on the outside and you can do that whole fight without anyone saying a word.
Try that with Crota.
You beat Atheon on hard without talking
the first week the raid was out?
Disagree completely. Crota is a one man show way, way more than Atheon.
Edit: For example, everyone could watch that above video, follow that strat exactly, and kill Crota right now without saying a word and me running the sword.