Im going to borrow Halo 2 for the original xbox from a friend on monday and I have a few questions about Halo 2's compatibilies with the xbox 360 slim 250g hd. First off: Will I experience any sound or audio issues while playing certain modes of Halo 2; Second: Will Halo 2 actually work on the xbox 360 slim 250g hd?; Third: Will I have to download a certain update to get Halo 2 to work properly?; 4: Some people are talking about a backwards compatibility thing that can be installed to the xbox. Will I have to get it?; Lastly: Is Xbox Live still supported on Halo 2, and if probobly not, what modes of gameplay on Halo 2 are still available?