Be sure to include the below body of text into your lights.rad:

de_nuke/nukwindowb_light 255 220 113 800
skerion/lights/invisiblelight 255 210 117 75
skerion/buildings/glasstorefront_light 255 220 113 400
skerion/buildings/glasstorefront2_light 255 220 113 400
skerion/lights/poollight 138 223 255 5
skerion/lights/invisiblelight2 255 135 15 75
skerion/lights/entrancelight 255 220 113 1

If I remember correctly, invisiblelight.vmt is obsolete isn't actually being used for anything on the map, anymore. It's mostly a holdover from when I got lazy and used invisible brushes to light up the streets instead of manually placing lights like I eventually did.

Also, doubledoors.vmf and glassdoors.vmf are utilized as func_instances in the two main VMFs so that I wouldn't have to manually give each and every set of double doors a unique name in order to make them open simultaneously.

The zip doesn't come with the custom assets used for the maps since that's too much of a logistical nightmare for me to deal with. You'll have to extract the assets from the addon itself.