If a Chaos Siege Giant with this upgrade perishes and falls over an obstacle such as a moat, ditch or wall (with the Falling Giant template across it), either leave the template in place or otherwise mark the obstacle, which now may be crossed by the Chaos Player as clear ground.

Additionally, if the Chaos Siege Giant dies at the foot of a building or fortification, Chaos models assaulting any garrison across the location of its body gain a special +1 bonus to their Combat Resolution.