Halo Wars 2 Xbox One open beta begins June 13 http://buff.ly/1rjQE3x June 12, 2016 | Posted in Shared | No comments Halo Wars 2 Xbox One open beta begins June 13 http://buff.ly/1rjQE3x Contributed by: LobbycastGeoff on June 12, 2016.Last revised by: Tagged: Buffer, IFTTT