You are a special agent assigned to rescue a professor named Kojima from a military base in Afghanistan. Your equipment is quite comprehensive, including a knife, a silenced pistol, night vision goggles, binoculars, a stun gun, flashbangs, and a cardboard box. You are also trained in CQC (Close Quarters Combat). According to the information obtained, the military base is equipped with advanced technology and houses the Parasite Unit, also known as The Skulls. Naturally, you are well aware that confronting The Skulls can be challenging when they attack.

Landing at a secure LZ, you disembark from the helicopter with a determined resolve and proceed towards the target location. Positioned on the eastern side of the military base, you observe many soldiers and The Skulls on guard. You prepare to infiltrate and rescue the target. Before doing so, you must decide whether to kill the guards or incapacitate them. Your reputation will be determined by this choice. Good luck, Big Boss.