The World Eaters are the only traitor legion that do not use 'Sorcerer' (or Librarians) because Khorne dosen't like psykers that that employ long range attacks and trickery that dishonour the warrior's spirirt (am I correct on this?) but what about astropaths and navigators? How do they get around galaxy (navigators job) if they sail blind with there ships in the warp and can't communicate with one another (astropaths job) besides voxes (so don't bring that up). Also Khorne demands psykers to be sacrificed to him. Then how do the world eaters summon daemons that requires sorcerers (or a word bearer dark apostle; information based on the chaos space marine codexs).