Standing shoulder to shoulder and rolling around the map like Sonic the Hedgehog isn't a skill. The fact that the game forced people into a single play style, and there was not ability to counter or resist that play style OTHER THAN TO PLAY THAT SAME WAY..... ...is bad game design. That play style wasn't dominant because the players were skillful. Its that Bungie tipped EVERY aspect of the game in its favor, because that was the play style that Jon Weisznewski perferred, and the kind of game HE wanted to make.