poklane on 23 November 2015
The game itself is on other platforms, but Call of Duty recently switched to PlayStation 4. The Call of Duty World League with a $3mil prize pool will be played exclusively on PS4. Sure you can play your $8 wagers on other platforms if you want, but if you're even somewhat interested in going pro you'll need a PS4.
And to answer OP's question if Sony needs one: nope.
