It'd be pretty awesome if Bungie added something similar to the 3D Maneuver Gear into the Destiny game. It can be used fantastically against oversized enemies and can also be used as transportation which means there'll be less demand for vehicles. The image link above gives a clear explanation of how the 3D M-Gear functions and it's physics.
Click the link below to see it in action:
[spoiler][url]http://www.youtube.com/watch?v=eWYj1zsyGn0[/url][/spoiler]
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This is not -blam!-in attack on Titan. That's just stupid.