For some odd reason they haven't included two OSTs which I have been looking forward to most, Wintry Shackles PV 2nd Part and the Alpha animation ost(which is reminiscent of Narwhal!). We can only hope that they get added at some point. But tbf I think overall the quality of these PV osts are far lower than volume 1. Still would be great if they were added in the game at some point