Warrior

A unit containing Courageous must reroll failed Courage Tests.

A unit containing Fearless automatically passes Panic Tests, cannot choose Flee! as a Charge Reaction (unless it is already Shaken, or the entire unit has Feigned Flight).
In addition it ignores the effects of Horror.

The wearer's model gains Resistance (Toxic Attacks).

A model with Shield is considered to be using a Shield at all times, except during the Melee Phase if it is using a Two-Handed Melee Weapon.
A model using a Shield gains +1 Arm.
In addition, any Height 1-3 model using a Hand Weapon while using a Shield gains Parry.
Note: Shield provides no benefit against Melee Attacks when using a Two-Handed Melee Weapon .
Remember that since Shield (and parry) provide modifiers to Defensive Characteristics, their effects do not apply to a Character on a mount that has its own Defensive Skill or Armour.

During Combat Choices a model part can only choose a Hand Weapon if it has no other options, or is a Weapon Master.
Models with a Shield using a Hand Weapon gain Parry.
All model parts without Innate Weapons come equipped with a Hand Weapon as their default equipment and cannot lose it.