It was the same English in UK and Us thou Atari had a voice patch to clean up some of the translations.
Best I can tell that is what killed the deal between JoWOod and Atari on Night of the Raven.
Atari wanted cleaned up dialogue and JoWood could not deliver as PB refused to work on a patch since they had started on G3, so Atari did not publish and let contract runout.
JoWood wanted another add besides Night of the Raven, but PB refused to work in G2 again after starting G3, possibly due to contract on G3 timeline or just ready to move on.
PB did release a Editor for G2 thou it is German language to operate it but stranglyenough textures and stuff are in English (I hear)
But I don't get a sense you're listening, so, fuck it, let's go to Hell !