Too much information about master chief is not mentioned. There are soo many cuts in history that need to be connected. Hopefully halo 5 shows the origins of the chief.
Do you think it will?
-
I mean its really not much to tell. If you're curious you should read The Fall of Reach or search the Halo wikia. As for Halo 5, given the way that Halo 4 ended I'd assume that it deals with Chiefs humanity or lack thereof.