On normal, the group and I play from the left. After the adds are clear, I go down the plinth where the Chalice sits. Whilst standing on top, I Swordbreaker the Swordbearer for an easy 1st sword. After I've used the sword, Crota rotates to the right. I return to the left where the rest of the team is. Another Swordbearer will spawn. You aggro him by walking down the stairs and then walking back up them. All you do is keep an eye on Crota's movements. When he starts rotating back to mid, go down the stairs & frag the Swordbearer. Assuming that you have been able to hit Crota x3 per kneel, he'll be dead in 2 swords with plenty of time before he moves. I'll show you all this when I teach sword bearing Monday eve mate.