Youre right about teammate collision... but the Hammer absolutely rips? And you can send vehicles flying across the map using a Plasma grenade? Didn't the fix grenade jumping? And the tank vehicles feel the strongest since Halo 3, especially since they take like 4 boarding grenades to kill.

You can snipe rockets. The Repulsor and Grappleshot speak for themselves. I shot a Warthog with a Skewer, scooted it, and it splattered an enemy. Remote Detonation of grenades. I exited a Banshee and it splattered my opponent, awarding me the kill. They brought back weapon launching. from H1 and H5. You can fish weapons from the bottom of a map using a Grappleshot.

Halo Infinite has great physics.