The Tyranid player may opt to include the direct influence of the hive mind in lieu of having a fleet commander. These take the form of Hivemind Influence Rerolls, which work in the same way as normal command re-rolls, and Hivemind Imperatives, which will cause a command check or Leadership test to be passed automatically. The decision to use a Hivemind Imperative must be taken before the dice are rolled.

A maximum of one Hivemind Influence Reroll can be purchased per Hiveship in the fleet.

A maximum of one Hivemind Imperative can be purchased per two Hiveships in the fleet. Squadrons

Tyranid Escorts come as squadrons of 2 to 6 vessels, while all other types are individuals (including drone ships) and may not deploy in squadrons.

Each hiveship allows the Tyranid player to purchase up to 500 pts from the hivefleet list. If no hiveships are chosen only scout drones may be used. Hiveships have a starting Ld of 8.

You may include any number of Capital Ships

You may include any number of escort Ships

Up to 10% of the fleets points allowance may be spent on Ordnance markers.

Tyranid ships are much more flexible than the ships of other races, as new designs are constantly being evolved and encountered by the Imperium. To represent this, rather than picking a fleet from a selection of pre-set ship classes, a Tyranid player can design certain elements of their ships themselves. The ships are broken down into several categories, based upon their size and role. This gives the ship its basic statistics. It may also be given some 'fixed' weapons (including the number of Spores it can launch). The rest of the entry details the various weapon options available.