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Published on Mar 22, 2012
Halo: Reach Challenge guide - Co-op Dash on ONI: Sword Base Heroic.
Co-op Dash - 15343cR Clear any Campaign mission on Heroic, in co-op, in 15 minutes or less
In order of difficulty, you can get this challenge on the following missions: Nightfall ONI: Sword Base Winter Contingency Tip of the Spear Exodus New Alexandria (it's random so it's awkward) The Package Pillar of Autumn
The more (competant) people you have, the easier it is. Communicate, let people know what you're doing, make sure you know what the plan is. Pick your level of challenge, then check out the heroic difficulty speed run, and maybe Legendary as well, to pick up some tips on how to get through quickly.