First Person Shooter, y'know, the Call of Dutys etc. of the world. I'm not one myself but yeah, I can't see the hardcore fans of those games exactly preferring Majora's Mask. But that's a bit of a generalisation.
Honestly, whilst I don't agree with this, it's not exactly a terrible result. That...
well seeing as Ocarina of Time was exempt it was pretty much guaranteed Majora's Mask would make it. But that's a bit cynical. :P
Personally I disagree, but then again I disagree with most "GAME OF THE X" lists, since everyone has different tastes. Something tells me your a hardcore FPS fan...