Terror Unit causes Terror.
Troops who are confronted by monsters or situations that cause terror must test to see whether they overcome their terror. If they fail, they are completely terrified and are reduced to gibbering wrecks. Troops only ever test for terror once in a battle. Once they've overcome their terror they are not affected again.
If a creature causes terror then it automatically causes fear as well, and all the rules described for fear apply. However, you never have to take a Terror and a Fear test from the same enemy or situation - just take a Terror test: if you pass the Terror test then you automatically pass the Fear test, too. As any unit of Troops only ever takes one Terror test in a battle, any subsequent encounters with terrifying monsters or situations will simply count as fear.
A unit must make a Terror test if charged by or wishing to charge an enemy that causes terror.
A unit must make a Terror test at the start of its turn if there is an enemy which causes terror within 6".
Breath Weapons Fiery Dragons and the dreaded Hydras and Chimeras of the Chaos Wastes, as well as some even more bizarre creatures, have the ability to breathe fire, noxious gas, lightning or even stranger breath weapons.
A model with a breath weapon may use it in the Shooting phase. Use the Flame template, placing the broad end over your intended target as you wish and the narrow end next to the creature's head. Any model that lies completely under the template is hit automatically - models whose bases lie partially under the template are hit on a 4+. The strength and any special effects of the breath weapon will be detailed in the entry for each individual creature. Characters under the template are eligible for 'Look out, Sir!' rolls if they are in a unit.
Diagram <breath-attacks>: _The teardrop-shaped template is placed with the thin end at the Dragon's mouth and the wide end over the target unit. In this example, four models are completely under the template and are hit automatically. Eleven models are partially covered and are hit on a 4+._
Breath weapons may not be used as a stand & shoot charge reaction, and neither can they be used in close combat. A creature with a breath weapon needs time to belch forth its flames!