The mutant becomes a Chaos Were. It now has two forms. Generate a random Chaos creature using the procedure set out under Chaos Spawn, but only give it D6 Chaos attributes. Keep a separate record of this creature, including a separate record of fear points, as it is the mutant's Chaos were-form. The mutant is now subject to frenzy. When it becomes frenzied, it must make a WP test or change into its were-form for the rest of the battle. Chaos Weres can only wear Chaos Armour, which changes its shape to fit both 'normal' and 'were' forms. Other types of armour must be discarded.