Cover and Concealment

In certain situations, the intended target of a missile (or melee) attack may have cover or concealment of some kind. Cover is defined as "hard" protection such as that afforded by a thick tree trunk or stone wall, that is, anything that will stop or slow a missile weapon. Concealment is "soft" cover like fog or light foliage that makes the target difficult to see but does not affect the missile itself. Cover or concealment makes it more difficult to strike an intended target, and thus a penalty will be applied to the attacker's die roll depending upon how much of the target is protected from attack. For concealment the attack penalty should range from -1 (25% obscured) to -4 (90% obscured). For hard cover, these penalties should be doubled.