This happend to me also,
i still think they should add a market place or something like that,
this shop system is totaly nuts.
if you get demoted RIP lose all guns,
server crashes, rip lost 50+ guns yesterday !!!
i got video proof but if i need to upload that everytime to just get 50 guns back.. il be more on forums than ingame ....
since server crashed every 1 hours these days...

FIX the SYSTEM!