At least it's been retooled for modern graphics, like you said it's been heavily modified. Look at the Source engine, the engine behind Elder Scrolls Morrowind, Oblivion, Skyrim and Fallout 3 and New Vegas. The engine from Halo Reach is from 2001, but it's been retooled so much that doesn't matter anymore. Great engines carry great games, their age is a testament of their great capacity and flexibility (as long as they're given new tools to work with). I'm not a CoD zealot, wouldn't even have cared for MW3 if my friend didn't force me to play MW1 and my natural gaming instincts is to follow a story until it's finished, but really there's no sense is bashing a game for such silly reasons as reused engines and graphical resources! It almost makes me think the game is a classic gold if that's all people have bad to say about it, but luckily for me I know better and if I had played CoD from the first issue and played more military shooters in the past I'd be sick of them to and want to see them gone by being taken to it's own execution and force to shoot itself or die slowly by having it's feet lowed into a grinder and either be turned to dog food that it's family will be forced to watch or slowly die from the trauma, but all I'm saying is let's think of better reasons to hate. Not every game needs to look like Battlefield 3 (imagine how sad people with low end system [like me] would feel ).