Sigma made arrows rain down on them, and most of the enemies didn't have time to raise their shields. Besides, while looking from one side to the other at fearsome speeds, he chose the targets that were too stupid to try to block the arrows.
The corpses falling on the ground began to slow down those creatures, and Sigma had even more time to deal with them with relative ease. As for when some with the shields got too close, Sigma just stopped them by shooting arrows in their legs.
When those stumbled on themselves, they made several others fall and expose their heads. Sigma used that chance to kill them all in incredibly fast shots that made the enemies think that his arm had disappeared and Sigma was just magically firing arrows at that incredible speed.
