Exactly what it sounds like.
I play with someone a quarter of the way across the globe, so lag compensation has been awesome. Was a little surprised when it went away upon clicking the button to remote control my tank.

I have to ask - how deep-rooted is the engine constraint preventing the music from behaving dynamically? I personally greatly enjoy when games have even the smallest dynamic elements in their music. Many Nintendo games do this - jumping on Yoshi in most Mario games adds a layer of percussion, Mario ...