Tolkein orcs are created by mutating existing races, though it remains to be seen exactly which race is used or what the process of mutation entails. Breeding isn't necessarily that important, perhaps they're asexual or are like plants, having the reproductive organs of both sexes, such that the concept of gender is not applicable to orcs. Dwarven women are also controversial and debatable.
I don't think it'll be a problem. Orcs' vulnerability to missiles and lack of decent, consistent armour might be one of their weaknesses, compensated slightly by their thicker skins. I'm sure it'll be fine. So stop worrying.
And Kire, if you didn't want people to go off-topic, what were you doing posting it in the first place? It wasn't that important in the first place.
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