The interview questions for both factions are completely random and there is no right or wrong answer to any of them. Also, the PD manual gets leaked constantly so theres really no reason to pay for it.
As said in the title, selling guns, have 10 left
M4 - 3€ per each
MP5 - 2.5€ per each
Desert Eagle - 2€ per each
Screenshot (taken for one of the members of multimart): https://imgur.com/a/0xlP8hK
Accepting paypal only!