I’ve been playing reach all week and not once have I found any of the defiant maps. 343i really needs to make a DLC only game type.
Try Squad DLC, it plays on maps of the Noble and Defiant DLC.
In Infection you hardly find Defiant Maps because alot of people don’t have Defiant.
Squad DLC will eventually get you a chance at the 1 flag achievement…
1 flag condemned also shows up in Team Objective.
Condemned VERY RARELY pops up in Infection. And when it does, people don’t vote for it!
Thank you guys for the quick response.
Alternatively, if you’re running in Team Objective looking for 1 flag CTF on Defiant, try deleting your Noble and Anniversary map packs from your hard drive (you can redownload them from your history, don’t worry) so that it forces Defiant DLC to show if everyone has all DLC.
The new achievements were handled so poorly. 
I will try that, Im just surprised I didnt think of this…lol