I was Also thinking Buffing Winter's Howl to instead of dealing about 1-2k damage Slow zombies by one stage until they die
(Sprinters->Runners->Walkers->Dead) So it will one-two shot early rounds and three shot late rounds
Also Maybe Buff the PaPed Wunderwaffe to killing 12 ...

I was thinking if you could add perks in Nacht like Jugg in the exact same spot as in Revelations Quick Revive next to the help door in spawn Double Tap (With the damage bonus since youre going to include it,  also update the icon to the Double Tap II if you can) on the upper floor in the area ...