Just select 'Tom Clancy's Advanced Warfighter 2' from the list and click 'can I run it'. Then answer 'yes'. It scans your pc and gauges how well it will run and recommends where you could benefit from upgrades.
I Have it on max graphics too. It sux. even at MAX. I cant force 16x Anti aliasing, or any for that matter. If only you could force more onto it then it'd look good.