Actually i find this method quite long to do but better yet i have a way better method and you don't even need to pop a 3oC. So if your willing to delete a character ( don't worry i'm not making you delete it for no reason) then create a new character, get them to level 26 then play prison of elders and at the end you 100% garenteed an exotic because new characters are garenteed exotics on there first time doing prison of elders but really it doesn't matter what level Prison of elders you do but just do the level 25 one because its easier but please try this method, i personally find it VERY useful i do it all the time and so far i've never gotten any of the same gun i've always gotton different weapons. using this method i've gotton the Jade rabbit, the last word, zhalo supercell, suros regime, no land beyond, and the monte carlo. If you want feel free to add me on psn (ps3) @ Gamerboy603 along with my backup acc, IAMDELERIOUS. i have a mic and play daily.