@HeX Reapers - I'm pretty sure I located Pendant and Zen through the in-game fileshare search function. Next time I load up Reach I'll either find out what GT they're listed under, or I'll just put them on my fileshare so you can grab them. If I can track down the other two I'll get you info on them also.
Breezeway by @CyborgAnthro is a multi-leveled map for 4-8 players. It has a really clean aesthetic, and provides fast paced 4v4 action.
Sorry for the late update. Not sure what happened, but all my alerts before Saturday seem to have vanished so I never got alerted about any postings. Both new vids have been now been added. Caia, is such a tight little map. I would love to see a Halo 5 remake. @HeX Reapers It's too bad we don't have an official storage point for these maps. Often original authors, for one reason or another, stop hosting the files. This is one way in which I think the new fileshare will be better. With the new fileshare you will likely be able to search out a copy of the map, as long as Microsoft is hosting. The tougher part will be finding an unedited copy.
^ These are in my fileshare. GT = a Chunk I haven't been able to track these down either. Somebody must have them saved, I just don't know who would have them... Sucks because I know I had them saved on the hard drive of my 360, but I don't have access to it, and actually don't even know if I still have it. Last time I checked, I didn't see it amongst the systems I have in storage, and they're several hours away from where I'm living so it's not exactly easy to just stop by and check.
If you ever get your hands on it, take this knowledge with you. http://www.forgehub.com/threads/how-to-add-halo-reach-map-variants-to-your-cloud-profile.149599/
Cataract is a symmetrical, competitive 4v4 map that was co-forged by @WALDO the lemon, @Seven oh Three, and HikaruX.
Cella is a floating asymmetrical map (in the same vein as Guardian or Lockout) made by a Polish Korean (aka @aPK).
Today we have Cipher by @AceOfSpades. Cipher is an asymmetrical 2v2 map that combines structure with natural terrain.
@AceOfSpades is back again today with a map called Concave. Much like his map Cipher, Concave combine natural terrain with structure in an asymmetrical design that supports 4-10 players.
Zen is under "Its_NeXn" in Reach. I'm pretty sure I have Ebalere and Pendant downloaded on my old account. If there's a way to see that list from the in-game fileshare than check under "basketskate3".
Unfortunately unless you uploaded it to the file share people will not be able to download it from your profile in Halo Reach. On the plus side, for the first time since Reach, we get to be upset that current Forge features aren't included in Reach.
This is a really cool series, I only joined FH at the start of 2012 but still. The nostalgia is real because I remember playing on a lot of these.
Cornerstone is a 4v4 map made to play objective gametypes. It was designed and forged by the trio of @ThrowinDemBows, @Shad0w viper, and @Chrstphrbrnnn.