fivem-install:

just copy and paste by install. normally you dont need to replace files.
create a folder in server-data/resources : [tanks]
then open the zip archive and open the folder "vanguard4pack-230120(fivem)"
and put the 4 subfolders in the folder "[tanks]" that you created.
now open your server.cfg and add the 4 foldernames. thats it.

fivemspawnnames:

antrazit: vanguard
classic-blue: vanguard2
badguy-black: vanguard3
khaki: vanguard4