[Tuor in Gondolin]

I think portraying orcs as poor fighters can be
exagerated. Remember, in LOTR orcs are
gewnerally seen going against the best of the best
of the good guys, Gondor and Rohan in the Third
Age were increasingly militarized societies with highly
trained warriors and systems of warfare, and Sauron
seems to have deliberately bred orcs of various sizes
and capabilities (for example, the tracker orc and his
companion patrolling in Mordor after Frodo and the
"great elf warrior" escaped into Mordor).