Today, Rockstar finally raised the curtain on Grand Theft Auto VI, and we got our first good look at what the game will actually play like. While we saw footage of GTA staples like shootouts and police chases, anyone who’s played one of these massive open-world games knows that many of the most memorable moments are the optional side activities. Today’s trailer showed a lot of them, and while we don’t yet know if all of them are actually playable,…