First of all you need to get these three:
1.HyperHud Rebirth (Any version)
2.Nep Nep mask
3.Skill Tree Background Restoration v2

If you're really unsure how to install mods you can head to one of our guides that shows you how to do it!
Here's the guide:
https://gtm.you1.cn/sharedfiles/filedetails/?id=681109530


1.You need to create folder called mod_overrides inside of assets.


Remember! It must be created in folder where your PAYDAY2 is located otherwise it won't work,most likely you can find it under:


2.If you got folder already go to those links.

1.this link[modworkshop.net]for HyperHud Rebirth made by |VLH|Ninjacrep.

2.and this[forums.lastbullet.net]for Nep Nep mask made by Tatsuto.

3.this link[modworkshop.net] for Skill Tree Background Restoration v2 made by Solo Queue Pixy!

Down bellow are 2 options "download" or "report download"
Press download and it will start downloading .zip file or .rar file.


After downloading you recieve this:
3.Last step is unpacking files.

Go to the mod_overrides folder and unpack all the files that you downloaded.

NOTE: I have few other mods there but this is how your folder should look like after installing

4.Fire up the game and check if its not crashing.
If it keeps crashing do the steps all over again XD

Hope you are going to have fun as Nep Nep Heister!

Dont forget to 

ALL RIGHTS RESERVED TO MOD CREATORS

Guide dev update:
Update v2 - New version Nep nep Hud (26th june 2017)
Update v3 - Updated previous thoughts and corrected some grammar errors, changed "folder location" pictures. (28th September 2018)