What the...?
Why are the Reapers suddenly only using a single particle stream weapon coming out of their middle? Souvreign had one of those on each "claw"!
And if everyone there is dead, the building destroyed and the only things that move are all husks, why not just bombard the area from the air or orbit, rather than wasting your ground soldiers, who would be better used to protect the surviving civilians elsewhere.
God I hate it when trailers - games and movies too for that matter - try to look oh-so-cool so hard that it only ends up being stupid, even if they didn't throw logic out of the window/airlock, which of course they did.
And I think those fighters look more like miniature versions of the Normandy (the first one from ME1, which's look I like much more than the ME2 varient) than any UEF fighter.