Oko

The Oko is an interesting creature. They act as a constant steady stream of eyes and ears for the Ustanak, which is itself a powerful B.O.W. (Bio-Organic Weapon) which lacks strong sensory organs. The Oko are produced from a sac which is located on the back of the Ustanak.

They resemble a mixture of different insects but with Bat wings, along with two antennae at the front. Additonally, they have a collection of sacs on their underbellies which contain material which is bioluminescent.

The two creatures are able to share information through ultrasonic signals, and if enough Oko are killed they are replaced fairly quickly. Since the Ustanak relies on echolocation and vibration to get around, having the Oko around to augment their hunts is essential.

The Oko get around by flight, and their flying motion is very Bat-like (flying up and down rapidly) despite their appearance. They can also use their rudimentary pincers as legs to walk along the ground for short periods. If they spot something they think the Ustanak will be interested in, they will emit a specific signal to the creature which directs it towards them. They also have what can only be described as a cone-shaped light in front of them which makes them feel similar to a sentry of sorts. The most appropriate course of action when dealing with one is to avoid the front of it and sneak behind, as any gung-ho or forward-facing encounter will surely attract the attention of the Ustanak.