Drag the Add-On pack into your dlcpacks folder, and add the pack to your dlclist.xml

As for the EUP:

Patrol Shirt goes to importexport_01

Vest goes to january2016

Badge goes to SUP christmas2018

Hat goes to EUP PROPS vinewood

Kevlar Vest goes to january2016

Jacket goes to male_xmas

Undershirt goes to january2016

Belt Badge goes to smuggler_01

The badge also has a normal and spec map you can use if you choose to export the mall security badge to OpenExports and add the textures in correctly and re-import it for normal and spec mapping