Instead of roc's Ryan worked out grinding patrol missions is a quicker way to earn rep to level vangaurd and factions.
I'm wondering if preparing for HoW is better then getting that gear and go straight to level 32 then work on upgrade to 34. No need to grind shards that way, that is if you have the expansion.
TBH I don't see it as cheese more a shortcut, you still have to kill what needs killing, bungie have left it in the game, they didn't do that with Templar and atheon.