Ragnarok is baritone. Confirmed by Roy.
Also, Roy had the natural 3 pickup Les Paul Custom tuned to baritone on Chemical Wedding tour and played multiple songs with it (Gates Of Urizen is another and AFAIK, he did Trumpets and King In Crimson with it too).
Adrian played those 3 songs in drop D, but had the Dean Baby ML tuned to Baritone for Chemical Wedding. So, Chemical wedding is baritone, for sure.
If you look closely during the solo, you can see wound G on both guitars, which indicates that they are both tuned to baritone.
Further proof here: if you watch what chords H plays at the end of the solo, it pretty much confirms, that the guitar is tuned to baritone. At the very end he plays the F bar-chord, but the chord in the song is C and then moves to the open E shape and the chord in the song is B. So, the tuning is baritone 100%. You can also see the wound G on Guru's guitar.
Here is the King In Crimson footage. If you pay close attention during the solo, you can again see that Roy is playing a wound G string on the LP Custom. Also, if you pay attention on how both Roy and Eddie fret the main riff, it's pretty clear they are both in drop A. Adrian meanwhile, is using drop D tuning probably with an octave pedal.