Orcs are a dangerous foe, but few things can be more unsettling than a Savage Orc rushing towards you half (if not totally) naked frothing at the mouth having no concern for their own safety.
In fact the bigger the enemy the better and more fun it is for them.
Orcs consider their Savage cousins to be dumb and backwater primitives that stay out in the sun too much......For greenskin understandings this is saying a lot.