Board Thread:Destiny Forum/@comment-26403476-20150907012128/@comment-26355186-20150907061409

You get the recurring options because there are only five different bounties, but there will always be three options. The bounties are as following:

Thorn - A Light In The Dark Bounty

Bad Juju - Toland's Legacy Bounty

Pocket Infinity - Shattered Memory Fragment Bounty

Invective - A Dubious Task Bounty

Super Good Advice - A Voice In The Wilderness Bounty

MiB is incorrect. Plan C does not have a Bounty.

I would say that right now, in the state that the game is in now, Thorn is your first pick, Bad Juju and Invective share the second place, Pocket Infinity third, and Super (Bad)Good Advice is your last pick.

When it comes to drop rate, I have no idea. Just continously hand in bounties and pray to RNGesus. A friend of mine claimed that you have a higher chance of getting the Missive if you hand in IB bounties and/or multiple Vanguard bounties at the same time, but I'm not 100% sure on that, as I have seen the Missive drop when players handed in a single Crucible Bounty.