My best guess is that when you downloaded the update(s) you scored some damaged packets. The simplest fix is to delete all downloaded content by going pressing the Xbox button>System>Storage>HardDrive>Games>scroll to destiny and select>manually delete every file. No worries as to save games, everything pertaining to your save game is saved on destiny's servers. You will have to adjust any game settings once you reinstall the game (ie. brightness, look sensitivity), as this information is stored on your harddrive. Also, delete the cache prior to re-installing the game. To do this, press the Xbox button>system>storage>highlight harddrive and press Y>clear system cache. Now you're ready to install the game. As soon as you load the game up, you will be prompted to download/install the update. Pain in the ass, but this should resolve your issue. Happy hunting guardian!