I don’t think that all that 343 is going to do is upgrade weapons I think they’ll make their own weapons cause they are saying a lot they want to make Halo 4 theirs. By the way it looks like the warthog changed in the first look.
I was thinking there would be a sentinel beam weapon actually meant to be wielded by a person rather than a mechanism you pick up out of the wreckage of a busted sentinel.