I guess that almost goes without saying: is Master Chief ever anything but stoic? That's sort of his thing.
It also does that thing that happens in every Halo game where Master Chief just sort of space jumps from one ship to another like it ain't no thang.
So in that case this is probably the most Halo-esque cinematic ever.
-- Stoic? Check.
-- Space jump to another space ship? Check.
-- Casual banter between soldiers before leaping into battle? Check.
-- Incomprehensible sci-fi babble couple with soaring orchestral soundtrack? Check.
Bugger it. I'm so ready to do this all over again.