Don't worry, Eliminator basically runs as fine as any other splitscreen mode.
Yep, you can fire everything in every direction. You can even fly each way, too. Eliminator is gonna be da SH.T online!! (in a good way!)
blackwiggle: You start WOHD, choose which menu style you like, then there's seperate "HD" and "Fury" campaigns, anything else - I think - uses the same menu. Does that actually answer your question? I'm sorry, but I'm somewhat pressed for time.
Ben