Задал этот вопрос на официальном форуме ( http://uk.games-workshop.com/forums/warhammer40000/ ).
Вот один внятный ответ: Well, we do know that this question is on their list for consideration due to the inadvertant release opf the working document "Spanish FAQ". FOr those that are unfamiliar with it, the GW Spain site posted an FAQ that was a work in progress, and this question was on it. According to the Spanish FAQ, they die. Whether that will be the final answer, who knows, but maybe it was intentional........