User blog comment:Commdor/Mass Effect 3: Leviathan trailer released/@comment-5503561-20120824210445

Seems legit, and if that bit with Atlas before it goes underwater is really, finally, third person gameplay of it, I will be very pleased.

One odd thing I notice is the Leviathan sounding like carbon copy of Harbinger. Which is weird, considering it's a different voice actor.