IGN are currently working on one and it should be out soon;
Btw, what do you need to do to get 100% other than these: Bike Deliveries, Stubbs' jobs, Gang Wars and Races. I'm on 86%.
Assassin's Creed, Assassin's Creed 2, Bioshock, Call of Duty 2, Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2, Fable 2, Fallout 3, Fallout 3 PC, Fight Night Round 3, Left 4 Dead, Lego Indiana Jones, Lost, Oblivion, TMNT
Dash of Destruction, Portal: Still Alive, Sonic the Hedgehog, Sonic the Hedgehog 3, Soul Calibur