All I want to do is play the steel and titanium pack, i saw that I can sort by just one or the other map but no one ever has matches in just those maps, is there a way to see who has those maps in their cycle before I join a server?

Set the match type to all and pick the steel and titanium map pack, someone should have a game going.

I've seen a number of rooms labelled as "steel and titanium". Granted, they're not super common, but they're out there. I imagine those rooms will become more common as more people get the map pack.

Yeah I don't see an option where I can just sort by Steel and Titanium pack, I can only sort by individual maps or killzone 2 originals (whatever that is).  Whenever I sort the new maps individually there is no one in them.  I have yet to play a game in the new ones, there should be an easier way to find those maps, I'm starting to regret buying them since I can't even find any one playing in them.