The issue has been fixed!Regular zombie spawners dont actually need barriers. Theres info about making the spawners "windowless" here https://www.ugx-mods.com/forum/help-desk/10/zombies-and-traverse/9021/msg99027#msg99027 You also need the kvp's script_string zombie_chaser. I've done this method before and it works
I didn't know the barrier spawners needed the whole barrier to make it into the map. In hindsight that makes a lot more sense now.
Thanks for the help, I won't forget this info.