I have to say, most people really are illiterate.
Clearly this game is of the 2006 CoD 3 game, yet many negative reviewrs here are referencing Modern Warfare 3 instead. THAT'S A DIFFERENT GAME COMPLETELY.
Call of Duty 3 was a great starting game for the PS3 and very fun to play through on campaign. The game isn't perfect as it has some bugs but the 1 star reviewers talking about having to download CoD2, glitches and bugs, online issues and the price etc are CLEARLY not talking about this game, but the Modern Warfare 3 game.
Honestly, I get most of these folks are probably kids with limited basic literacy and reasoning skills but it genuinely makes me sad for humans when the sheer volume of 1 star reviews on this game from people with - when I read them - I quickly deduced are not from the 2006 game.