Ogre Warrior/Boomer Chariots

How can the irresistible charge of an ogre be made even more powerful? In answer, ogres have taken to using chariots of orcish make, either looted or bought from the orcs, together with herds of gores or mawbeasts to pull them. Organised in thundering squadrons, these very heavy chariots are easily capable of shattering the most well-drilled of battlelines