The brand-new MLG.tv Columbus Arena opens tonight with the Call of Duty: Ghosts Pro League Season 3 Playoffs, a tournament with a massive $75,000 prize pool. The three-day event runs through Sunday, October 26, and you can watch it all through MLG.tv.Eight of the world's best Call of Duty teams will compete in front of a live audience (the event is sold out) for a shot at the $30,000 first-place prize.