Would it be possible to include an option to completely turn off any voices, whispers and warp sounds the psyker gives off? Of course this would ruin immersion, but I have a friend who is schizophrenic and can’t play the psyker the way it is without muting the entire game, since the voices make it unbearable for him to play.
I guess this wouldn’t be such a huge hassle to make, and would surely give quality of life to a niche group of players.