Instinctive Behavior At the start of the Tyranid turn any broods outside Synapse countrol range must take a Morale check for being All On Your Own. If failed consult the Tyranid Instinctive Behavior table. Additionally, roll on this table if a Tyranid creature fails a normal Morale or Pinning test while outside the Synapse control range.
Ferocious +1 Strength and +1 Initiative. Fericious troops must assault if there are any targets in range and must perform a sweeping advance. When a brood is subject to Ferocity the normal Deep Strike rule that models are destroyed if they land within 1" of an enemy model does not apply. Instead, any enemy models that are also under, or partially under, the large template mayy be attack in close combat. This is done in the Assault phase and is conducted normally with the Tryanids counting as charging.
But, at the end of each Assault phase of the Tyranid player's turn, whether the unit has been in close combat or not, resolve a Strength 2 hit on each Ferocious brood member on the table, with no Armour save.
Seeding Swarm If the Tyranid player gets to choose the scenario then the Tyranids will automatically be the attackers and must choose a scenario from the category of Battle.
All three missions under Battle use the Deep Strike rule, and all models in the Tyranid Seeding Swarm must arrive on the table by this method. The exception are Tyranid broods with the infiltrate rule and Lictors.
For all other scenarios, if the Deep Strike option exists it can only be used by Tyranid units with the Deep Strike rule.
