MCAT-Catapult Sound Replacement Issue

So, here is my issue. I want to replace the crashing sound of the WarCraft III Catapult/Demolisher missile with the booming sound of the missile from the WarCraft II Catapult/Ballista when it hits the ground.
As stated before, I could not find the MCAT-Catapult missile sound anywhere on the MPQ. If anyone knows, I will be grateful.