de_nuke_vanilla is just that, vanilla flavoured nuke. I wanted to keep this as true to the original as possible, hence there is no flashy stuff everywhere. The only intentional changes I've made are:
obviously textures :P
ladders are now props (no decent ladder texture)
ladder man hole slightly bigger (couldnt fit through it)
ventgrills (didnt see a good vent texture so made physical ventgrills, this is probably the biggest change as it may slightly affect gameplay)

To do:
Some texture work left to do
Add clip brushes in various places

...thats about it, then I'll make a saucier source version