After downloading the mod, use a program such as 7zip or WinRAR to extract the main folder of the mod.
Move the main folder of the mod to assets/mod_overrides. The assets folder is supposed to be in your game's installation folder (don't know where that is? click here for PAYDAY2 folder). Create the folder if necessary
1.Download the zip containing a folder "TF2 Robot!"
2.Extract the zip , and put the folder "TF2 Robot!" into "C:\Program Files (x86)\Steam\steamapps\common\PAYDAY 2"(or the place where your PAYDAY 2 is installed , just put it in mod_overrides godammit.)
3. ENJOY MVM MUSIC PEW PEW