Models that cause Terror also cause Fear. In addition, the following rules apply. Fear-causing models or models with Immunity (Fear) treat Terror-causing monsters as causing Fear, rather than Terror – this is an exception to the rule that makes Fear-causing creatures immune to Fear. Terror-causing models have Immunity (Fear/Terror).
Run for Your Lives!
If a Terror-causing creature declares a charge, the target unit must immediately take a Panic test. If the test is passed, all is well and the unit can declare charge reactions normally. If the test is failed, the unit must make a Flee! charge reaction. Note that, if the target unit is not allowed to take any charge reaction (if, for example, the Terror-causing unit charged as a result of a pursuit or a random move), then the target does not take this test.
If a unit wishes to declare a charge against an enemy that causes Terror, it must take a Psychology test to overcome its terror first. If the test is failed, it may not declare the charge against the Terror-causing unit, but may choose to declare a charge against another unit following the rules for Redirecting a Charge. If the Psychology test is passed, the unit may declare the charge as normal.