Shattered station + 2 other map rewards and difficulty

Cheers, a lot of old zm maps have been deserted with useless rewards like dual colt, zombie coins, weapon blueprints etc.
The idea is to put new rewards and maybe new difficulty like expert and nightmare especially for shattered station to be more challenging and rewarding. It means to add more permanent weapons and other rewards because the current are really out of date
This also includes other maps like venice, devastated city, emd lab and so on. The point is to reanimate the oldschool zombie maps.
thanks