I've simply left my custom map as it is and moved on to other addons, but one such thing to me is that when a .bsp is extracted from the maps.vpk file, I opened it up in Black mesa, but there was missing textures and lighting issues present in that map. To fix it, just put that extracted .bsp file into a separate .vpk file. That suddenly gave me a feeling that I should go back and edit this map, though I redid the entire map instead of editing it. Now, on the entrance door with celing turrents, one of the Alien Grunts is now gibs and a Hivehand for you to pick up. The Tau Cannon is now placed on the right end of the weapons room where I figured out how to disable motion on it.