GMMichael
Guide of Modos
Yikes. It seems that Krorks were a celestial-war combatant/faction, so I wouldn't be too worried about them. Mythology being what it is. But the orcs of Warhammer fantasy are:
" . . . huge slabs of muscle moving underneath tough green skin, and their jaws are lined with vicious fangs that jut out from their underbite. They have beady red eyes, a generally foul demeanour, and are naturally bald. Normally six feet tall, they can be up to seven feet tall . . ."
So, not Mountain height, but they weigh as much or more than the Mountain judging by these burly dudes:
Speaking of 6 to 7 feet, it seems that's what 6e, PC orcs measure, and their Relentless Endurance ability would let them crush some skulls just like the Mountain did.
I have ogres in my campaigns, but they're mutants, so they exist but don't occur with enough frequency to ruin civilization. Orcs, however, seem to reproduce just fine, so I won't be introducing them into my campaigns. Unless I give out an overpowered magic item accidentally.