Game is looking fantastic so far man! Really love the screenshots
Oh and by the way, for the "illuminationent.fx" effect on a light source, all you do is place an entity, perhaps the "light_e" model from the ww2 section. Then, right click it so you get its list of properties up. Go down to the "Optional Visuals" section, then where it says "Effect", click on the blank box to its right.
This should take you to the "effectbank", and down the list you should see a folder named "illuminationent", go into the folder and double click the fx file with same name. Now, apply changes and you're good!
Attached is a photo of what I mean.
-Edit-
Sorry, the photo isn't the greatest quality, hopefully it still helps.