The tabs I find for this are often wrong, especially if you watch Buzz play it. It seems like he takes the C from fret 3 and bringsa it up to a single string , muted noise riff on fret 10 (a string). But unlike the tabs that move you from fret 3 to fret 2 (power chord), going down from the a string 10th fret to 9th fret doesn;t sound right. Anyone know what he's doing here to make the b chord part of that riff?