I'm finding that certain of my PSN friends' times never appear in my leaderboards. I've reported it to the dev via twitter and they indicated they're working on it.

I'm also finding the explosion sounds of the rockets, missiles and bombs are really lacking in bass. I don't know if it's supposed to sound like that, but they sound pretty pathetic and sort of metallic in comparison to how they were on PS3 HD/Fury. I play on cockpit view and have the sound in surround mode. Anyone else finding similar?