first, they weren't going to the carrier they were doing a routine check when the prophet of regret's carrier jumped into slipspace. 5 pods i think
6 - Dare, Buck, Dutch, Romeo, Mickey, and Rookie. But, that's just Dare's squad. There were multiple teams dropping in, but they were destroyed by the rift caused from Regret's jump. And they were assaulting the carrier; they were going to assist the Master Chief in Regret's capture, except for Dare's squad, who had orders to secure the Superintendent AI (this was only known by Dare and not the rest of the squad).