Buiscuit

need some help, I tried to make a doom wad in ultimate doom builder, so I thought I better make sure it works before I finish the entire thing, I drag and drop the wad file onto GZDOOM and when I load into doom 2 it just loads into the normal first level of doom 2. I think Im just being stupid but i need someone to help me please as I was really happy with my map and am now gutted that i cant even play it. oh it does work thought when I run it through ultimate doom builder