Whats up guys? I used to play custom zombies a long time ago but got a job and a WoW account and invested all my time in that. Since then, ive lost touch with the new mods and maps and everything thats come out. I like high point maps and maps where you can train easily (UFSO is my favorite). If anyone has recommendations for maps and/or mods, id really like to hear them! Thanks!   

Welcome, i'm kinda new too But welcome anyway, This is a great community. Feel free to join chat

Welcome to UGX. Enjoy your stay here at Forum and UGX Chat

Welcome back!
I'm kind of on and off with custom zombies lately as well.
If by 'a long time' you mean a year or so, here are some maps that I REALLY loved playing:

Nacht der Untoten Reimagined
http://ugx-mods.com/forum/index.php/topic,7467.0.html
What is probably scrapped at Treyarch during BO2 DLC brainstorm session.

Black Ops II Town Remake
http://ugx-mods.com/forum/index.php/topic,6950.0.html
In case you want to play on WaW.

Leviathan
http://ugx-mods.com/forum/index.php/topic,6039.0.html
Taking Black Ops' 'Moon''s atmosphere under water.

Project Viking Beta
http://ugx-mods.com/forum/index.php/topic,4778.0.html
The unofficially beta map of pretty much anything.

Zombie Cargo
http://ugx-mods.com/forum/index.php/topic,5645.0.html
Really good remake.

Zombie Desert
http://ugx-mods.com/forum/index.php/topic,6066.0.html
Might be your new favourite.

Hotel Version 2
http://ugx-mods.com/forum/index.php/topic,6545.0.html
Gotta go for round 1337.

Cryogenic
http://ugx-mods.com/forum/index.php/topic,5860.0.html
2crazy4me.

CPH (Collingwood Psychiatric Hospital)
http://ugx-mods.com/forum/index.php/topic,4330.0.html
If BO2 Zombies storyline's MotD part moved to a hospital.

Some maps with high expectations are also WIP like Oil Rig, remakes, Frostbite etc. so I am really excited to play those when they come out too!

Hope you enjoy your return here!

Welcome to UGX, I would recommend checking out the map manager, good maps to be found there, you can also check the releases section to see what new maps have come out.

Enjoy!