The Drakhars began cleaning up the aftermath of the battle. They have taken those who surrendered captive and killed those who refused to surrender.
Most of the defenders gave up resistance after the Drakhars managed to force their way inside the fort. They knew that continuing resistance would certainly lead to their death which is why they surrendered. Being taken captive was better than being among the dead.
Although most of them surrendered, there were still those who were persistently holding out against the Drakhars. And the stubborn fools were gifted with sharp spears of the Drakhars. Unlike the orcs who would appreciate their tenaciousness, the Drakhars were not like them.
They viewed their refusal to surrender as being just plain foolishness. They ended them right there and then less they become headaches for them later on. Their main concern was that these stubborn fools might incite the now captives to fight back if given the chance.
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