All units in the Vampire Coast army are Undead and use the following rules.

Break Tests

Undead cannot be broken, but Undead units beaten in combat suffer 1 additional Wound for every point by which they lose the combat (no saves of any kind, not even Regeneration or ward saves, are allowed against such Wounds). If characters are present in the unit or if they are riding a monster, the controlling player can decide how to allocate the Wounds among the unit, the monster, and the characters. In multiple combats, each Undead unit on the losing side suffers 1 additional Wound for every point by which its side has lost the combat. If an Undead unit is wiped out by combat resolution in the 1st turn of a combat, the enemy gets the option to make an Overrun move as normal.

Immune To Psychology

Undead are Immune to Psychology.

Charge Reactions

Undead can react to charges only by holding their ground.

Marching

Undead models cannot make a march move unless they are characters or are within 12" of the General at the start of their Movement Phase. Note that all the normal rules for marching will apply (e.g., the presence of the enemy within 8" still stops them from marching).

Fear

Undead cause Fear.