This was the greatest weakness of the Greenskins that the Templar Knights, under Juulius's leadership, splendidly exploited as with step they took, more and more Orks were killed by their swords and hammers.
Meanwhile, the Undead who had surrounded the entire area were slaughtering the escaping goblins because the cowardly creatures wouldn't dare to remain on the battlefield after they saw their stronger cousins being massacred like pigs waiting to be butchered.
Goblins were cowardly by nature, only attacking when they were either forced or were sure of a 100% success rate of their attack.
Otherwise, they would just hide or escape, not to mention they were far smarter and more intelligent than your average Ork.
Orks were rather stupid, not that much as Ogres, but not that far from it either, not talking about their ridiculous concepts of honor on the battlefield and fighting culture that ordered them to fight to the death.
