[badmanbren]

Maybe just a link on the side called "Trade" and you can only put 1 trade request in at a time. If you trade you write a persons name in and offer a trade request. they get an event saying "someone wants to trade with you" then that person goes on the trade page accepts/rejects the request. if they accept then the person sends an offer of what they willing to trade (maybe money, credits, guns armour stims etc) the other person sends an offer of what they are willing to give for it then the other accepts