It's bungies fault. It's not like people are modding their systems in order to cheese crota, it's bungie that doesn't know how to work out the bugs correctly and rushes to get out content. I'm not saying I agree with cheesing crota, but you can't punish people for simply exploiting bungies faults. Same with people who get out of the map. ITS IN THE GAME! We should be able to play it however we want to. That's what happens when the DLC content is already on the disc. If you don't like people leaving the maps, or cheesing bosses, then fix it.