IS Halo 4 going down the Mass effect road ?

Fate of the galaxy .

Sheppard = master chief

reapers = fore runners(ancient guardians of all that exists)

halo 4 new gameplay trailer on xbox live , reveals the villains of the story ...

halo 4 going the same way as the mass effect series

master chief -> shepard

reapers (ancient galaxy's defenders ) -> (the forerunners) ancient galaxy defenders