Is there any repeatable way to increase legion fame? apart from the guy at Cottonwood Cove as i've killed everyone there :toughninja:

Nope Haha Cottonwood Cove was your passage to any legion fame. I like being vilified by the legion anyways. They should keep those red ranger eyes in mind

If you progress in the main quest, assuming you haven't already, then you'll get the mark of Caesar, travel to the fort and they give you quests which can improve rep. Unfortunately however to my knowledge you killed the only repeatable means of gaining rep.

Damn, Cheers anyways, i was a trying to get the key to the legion safehouse before i murdered them all
:/ but it looks like i've done all thier quests now