Brzak

Brzak was a shark-based B.O.W. created by the C-Virus. It was encountered by Leon and Helena within the depths of the ancient Catacombs that lie under the Tall Oaks Cathedral. It's name is derived from the Serbian word for "Rapids".

Biology
The Brzak seems to be an oversized bull shark mutated by the C-Virus. It uses vibration to sense prey and appears to be blind as its ability to hunt Leon and Helena is not affected after they stab it in the eyes with a harpoon. Its tongue is horrifically deformed, turned orange and takes up a large portion of the creatures head. This tongue appears to be capable to extending in length to ensnare its victims. The creature's fins appear to have claws on the end which enable it to navigate rough terrain and pursue its prey through dry environments, which is noticeable when it attacks Leon and Helena in the waterfall.

History
The Brzak was first encountered when Leon and Helena tried to escape the underground facility under the cathedral. They quickly saw a disturbance in the water, noticing the large fin splashing around. The B.O.W was trapped behind underwater rubble, allowing Leon and Helena to escape. The Brzak eventually managed to sneak up on Helena and pull her underwater, only escaping after a fierce struggle.

After the duo are trapped in underwater ruins, the Brzak stalks them as they swim for air. It catches Helena and Leon is forced to climb up its back to help her. They gouge out the creatures eyes, successfully forcing it away. Leon encounters it again while swimming to safety and must narrowly avoid its large attempts to pull him underwater.

The Brzak swims after the two when they fall into an underground ground waterfall and they are forced to shoot into its mouth to keep it at bay. The Brzak was killed when Leon or Helena, shoots an explosive barrel flying above them.