Tyranid Haruspex

Immune to all psychology. Cannot be affected by fear, terror, or any of the psychological factors in the Warhammer rulebook. 
Still affected by Break tests like other troops

1: Foot
2-4: Body
5-6: Arms*
Closest to attacker is hit

See rulebook page 66- too long to describe

Tyranid Vehicles are targeted as a Vehicle

Bolt Of Change, Force Dome, Hammer of Fury, Eldrich Storm, and Assail affect Tyranid vehicles  as vehicles. Vortex, Aura Of Decay, Aquiescence, Pink Fire Of Tzeench, Executioner, Kop Dis and Da Crunch work as normal. The Leadership test-based Powers (Domination, Smite, Scourging, Beam of Slaanesh, Pavane of Slaanesh and Storm Of Wrath) will apply to any Tyranid vehicle that is outside the range of a Hive Node (Hive Tyrant,Tyranid Warrior)

Rampage: If it takes damage causing it to Rampage it must charge the nearest enemy model (character, squad, or vehicle) that it can reach, moving at the fastest possible speed towards the target. May not fire any weapons when Rampaging.

Haruspex may ignore any infantry models in favour of vehicles when it charges. The Haruspex does not have to charge the closest target when it charges if it can not reach that target. The extra dice and +1 WS bonus for additional attackers does not apply against the Haruspex

The Ram Value is only used if the Haruspex is rammed or when making overrunn attacks

When a Tyranid vehicle rams or charges another vehicle, work out damage to the other vehicle as normal. For the Tyranid vehicle the location that actually touches the other vehicles is hit on a 4+ and other locations are hit on a 6+. Work out damage for any hit locations as normal

The Haruspex does not stop at the first enemy it comes into contact with. It keeps moving the full movement distance even if it ends within a squad. Any models touching the mandibles or within the area enclosed by the mandibles at the end of movement phase are attacked in close combat. If the Haruspex is moving too fast to end its movement in the midst of a squad, it will move through them and make an overrun attack as described in the Warhammer Rulebook (pg.78)

The Haruspex can attack multiple vehicles in the same turn, but does not get all of it's attacks for each vehicle. It must split it's attacks between them.