PaP/Free Perk guide here. Sorry that it took too long. I actually didn't realize i updated the PaP room which as a result fixed the bug i mentioned earlier in the comments. Additionally, please excuse the video quality and fps as i lost my settings for obs and i cant be bothered to fix it right now.

Please use my WaW weapon mod when playing this map as they offer much better sounds and textures. However, this comes at the expense of wall buys not working so your only way to buy better weapons is through the mystery box. Anyway that's all there is to say. Thanks all for the support.
https://www.youtube.com/watch?v=pJQZ19zGgBw