Please bring back the Map Pack playlist!
I can’t get freaking achievements because of you…
darn it…
You, my friend, are looking for the Squad DLC playlist. 
I think i didn’t looked that far?! 
But how do you look for Living Dead / infection game mode on DLC ? for the achievement?
Well the one for LD on Anniversary (Emergency Room, I think?) you can actually do in Anniversary FFA since Zombies shows up there.
The LD achievement on a Defiant map, unfortunately, you’ll either have to hope and pray shows up in LD normally or find 11 friends and go in and boost it. (I am NOT condoning guest controller boosting here, I mean 11 other players at controllers going into the playlist and looking for Uplink/Condemned.)
It’s a pain in the rear, I know. 
iv’got the LD achievement for Anniversary (3 kills in infected mode in one wave).
LD achievement for Defiant map pack (last man standing) haven’t seen it yet on Living Dead playlist.