Unlike movies, videogames rarely have memorable trailers. Most of the commercials created to show them off are either brief sizzle reels or prolonged, hacky punchlines. The TV spot for the original Gears of War was an exception, however. Undercutting the promise of apocalyptic alien carnage with the solemn baying of Gary Jules in his cover of “Mad World” led to a stop, turn, and watch moment. Somehow, the juxtaposition of a lone, bandana-clad bro running through a deserted metropolis with the melancholy musings of a piano and folksy singer-songwriter compelled a second look. Thus did it become, at least in…