I just finished mine off yesterday. No real new tricks, I just did team teleport & mission teleport, did other things for 30 minutes and did another pair.
Normally did the hang out behind the obelisk though beating up the mobs worked just as well.
For the final room, just have to beat the two guys on Sam to finish the TF, but that does assume enough stealth to get there. I did note that the rock guys did aggro on me even with invisibility if I was close to them. (No aggro fields)
And the LFG tab even works from inside the mission if you want to save a small amount of time.
