Far cry 4 ps4

Hi
I’m playing far cry 4 ps4 and wondering how do you get a gold gun weapon?
Thanks
Answer #1
http://bfy.tw/2YkK
Answer #2
I’ve tried googling it couldn’t find nothing.
Answer #3
first link points to a youtube link with GOLD GUNS in the title, pretty explanatory don’t you think?
Answer #4
One more question – I paid for Far Cry 4 Season pass (Game Pack) and downloaded it, it cost £23.99 pounds. On main menu I don’t see it anywhere does anyone know where it is?
Thanks