I tie Halo IP to PS3/360 calculation because at the time of Xbox 360 - Halo became a major IP for Xbox. If you want to play new Halo with friends - you need an

I tie Halo IP to PS3/360 calculation because at the time of Xbox 360 - Halo became a major IP for Xbox. If you want to play new Halo with friends - you need an Xbox 360.