Nydus worm (special infested)

A powerful strain of nydus worm emerges during Left 2 Die.

These worms have 3000 hit points on normal mode, and disgorge aberrations and regular zerg breeds. It have a boss bar when appears. They are especially dangerous since the regular zerg do not die when the sun comes up. It yields 10 biomass points when killed. When the sun comes up it disappears.