First update

To brighten up the anticipation of the big January update, we have released a small update that will give you a reason to go through the demo level again. This time, a new weapon is hidden in the back streets of the offices of an unknown floor - pistols, which will give you an undeniable advantage over the invaders. In addition, we added special effects of blood splashes on the walls and made it possible to reconfigure the game control for yourself. And also corrected the sounds of the speech of terrorists, so that they no longer scream louder than other sounds of the environment.