But Chief riding an anti-matter bomb into a CAS-Class Assault Carrier and then aiming his exit trajectory to perfectly hit a 500 meter long ship in the void of space isn't?

I mean, I get what you're coming at. But falling through space isn't that weird, they did it in the Halo 5 one and I thought it looked cool. It's when they get down to the ground where the ridiculousness start. The way they move makes it look like they defy all laws of physics. They never stop to build up new speed and such. It looks like they aren't affected by friction which makes everything look so unrealistically smooth. But I guess that could be just me. [spoiler]I know Spartans are super fast and can do some crazy shit but to me it looks like they're not bound to physics in the trailer which ruins it for me.[/spoiler]

You know they have thruster ports all over their armor which are constantly firing all throughout the trailer, continually accelerating and propelling their movements, right?

Yeh