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Who here have ever played Nexus Infinity?

I read all the steps that you provided for me but unfortunately when I opened up my map in ultimate doom builder in the zandronum format the custom items or monsters did not show up.

Is there another way to approach this?

I need some help with ultimate doom builder can someone show me how to addon new items or custom items?

The format that I'm using is zandronum: doom 2 (hexen)

Script type zandronum acs.

I tried using Doomednum, and read through zdoom.wiki and I followed the instructions but still nothing.