Think about it, why is Master Cheeks always getting naked? Cause Commander Shepard always is. Why is Soren (A character who famously cannot manage his own emotions or solve problems diplomatically) a suave pirate king with a wife and kids? And why's he wearing the MJOLNIR he couldn't wear in his story? Cause he's ACTUALLY supposed to be a pirate from Omega. Why do the Covenant have a human? Cause those are actually Krogans wrapped up in some kinda Geth, Reaper, or Collector plot. Why is Miranda Keyes randomly a scientist instead of the captain of a warship? Because the original version of the script had a scientist playing a key plot role. Probably Mordin or someone. Why does Reach not look like Reach at all? Why is it all sleek blacks and whites instead of UNSC blocky green or ONI techy dark grey? Cause it's actually N7 headquarters. Why are they mining deuterium on a fucking DESERT PLANET??? Cause they're actually mining eezo.