Hey there, if you have an eBay account you could pick up ODST for $45-50 in stores and sell the Multiplayer Disc online for around $20.00 and keep the SP for yourself. I really have enjoyed the SP ODST campaign, as some of the achievements require you to think outsite the "halo" box. For example, one achievement is based on stealth, not firing a single weapon in a stage. Aside from that it still is a Halo game, the SP has everything you could want.. huge banshee battles, tank wars, laser vs hordes of covenant *MOAN*, rockets, 'splosions all over the place. I have not yet even used the MP disc yet, and have been focused on Firefight and Story modes and feel it was well worth the $100 I paid for the disc + controller.







