for comparison: standard human has ca 30 hp, orcs are about 32 hp, so pretty much the same. A veteran (skill 12) hits on a 15 or lower, a trained soldier (skill 8) on a 12, a militiaman (skill 5) on a 10. They parry on 11/10/9, probably with a -1 or -2 depending on the weapon.
A newbie ork hits on 13, defends on 6 or 8 (depending on weapon), trained ones hit on 15, defend on 9-10 (att 14 and parry 13 with shield), and Elite Orcs got Attack 18-19 with parry 13-15....