Have you prepared your chants and jeers for Rocket League [official site] adding cross-platform multiplayer with Xbox One today? “You’re going home in the back of a Warthog.” Things like that. “Where’s your Milo gone? (Where’s your Milo gone?)” That stuff. “Two console wars and one E3, doo-dah doo-dah!” You get the idea. And after Edinburgh echoed with Sunshine on Leith all weekend, I realise you need a song too: Baba Yetu or At Doom’s Gate? What’s sportsball without friendly territorial rivalry?