I've just tried to do this bounty on earth cosmodrome. In the bounty it says you should take out 3 individual targets. However only one roames the area described in the bounty description. Not the biggest deal if you could go back and kill him again. However when you do go back the targets you killed is gone. (wonder why right) So to complete this bounty you have to go to orbit and start the patrol, or however you decide to go to the grottos, and kill the same single target. This is a lengthy process for a simple single bounty. So bungie please fix the bounty to where it is a single target to take out like the queenbreaker that walks at dock 13. Or have more enemies spawn in the grotto for us to kill. This simply doesn't works as it should.