Feral predator/doc

• One of the deadlier zombies one can meet in the game, it's impale ability can cause you to bleed, and even there it can still cause fast damage after doing so, it's higher vision and leaping ability also makes it almost impossible to escape from if it does spot you, DO NOT take these guys lightly!
• Even worse, feral predators have night vision, even if not as keen as their daytime sight, they can spot a player from a bit of a distance if the player is relying on Night Vision for night raids, by the time the feral predators enter a player's Night Vision sight, it may be too late, tread even more carefully at night as zombies evolve and listen for possible sounds of these monsters approaching...