Dogfights would be great. I really think they'd be a fantastic addition to the game, in both Crucible and PVE. Think of the possibilities. Even just having a way to fly the ship would be fantastic, so that they have a use besides just the loading screens.
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Said this myself a few times and have seen many other threads about the subject, would improve things tremendously. Hopefully DeeJ and others will see this recur enough times to try to have it implemented.