I do agree with the 'equal trading system' idea. I disagree with your implementation. Trading Vouchers that are just as rare as the exotics we'd most likely be trading for? It's just another drop to lower the odds of getting the exotics in the first place. A series of mini quests to unlock the voucher in exotic bounty fashion? Just another bounty to take up bounty slots in our inventory. Would we have to pick this bounty up or is it going to drop the same way as an exotic bounty does? If it's the former, could go weeks without it appearing. If it's the latter, that means choosing between an exotic weapon or an opportunity to trade for an exotic weapon. If a trading system was to be implemented then the [b][u]only[/u][/b] fair way to do it would be a 30 minute grace period at the end of each mission, where your rewards are trade able with the fire team you completed it with. That way, if one of your team mates gets his 4th Icebreaker from Aksor, Archon Priest, you can trade it for the Legendary Helmet Engram you got from the sane strike.