The physics skulls in the H2A campaign are pretty hilarious.The music elevates the warthog runs and trench run. I don't think they are particularly special levels.
I wish there was a no vehicle damage skull, different physics or custom option so we can mess about more in campaign.
One grenade can send the covenant across the map. Also if you shoot an elite in the air with the SMG you can essentially juggle them with the SMG.
Sprint is a make or break feature now. If you don't have it, it's not relevant. I've been playing Destiny endlessly, and anytime I go back to anything other than Halo 4, it feels like mud. Not to say anything negative about past halo games as I enjoy them all, but sprint is just.. Fantastic.
Whut? Come on now, that's just silly.