9th Edition Tyranids Unit of the Week Index Welcome to the Tyranid Unit of the Week Series!   Each week a different unit will be highlighted for discussion until we have amalgamated a full list of our available options and their relevant tactics as 8th edition evolves. We already have a few previous entries but things change as FAQs and Chapter Approved books get released and we playtest new ideas so please feel free to reopen a topic when new options become relevant for discussion.