Defiant achievement help$$

I have 3 remaining achievements to earn for halo reach. All 3 are defiant maps related. I find it difficult to get these maps. Could anyone help please?

I’m in the same boat. I ditched Halo 4 and sunk into Reach again but I’ve noticed that there are no DLC playlists anymore, and the DLC maps never come up in the rotation. It’s a bit frustrating since I like some of those maps and the default Reach maps simply suck.

I have all of the DLC, GT: Deved zombie
I need hel with the achievements

I need some Defiant cheevos as well and will help out. Gt = GhostRider1172.