In the "Desert Bunker" level, when you have gotten all three security cards and have put them in the main console, go for the Blue security door near the start of the level (the door with the lasers and the gun). However, before you do this, equip your 9mm pistol and make sure you have at least half health. By doing this, you should be ready to easily win a hard battle. After deactivating the lasers, go through the Blue security door. Upon entering, the door will slam shut behind you and Viktor Rashenko, one mean terrorist with one mean flamethrower, will come down on an elevator babbling about how he will "break" you. To start off the battle, don't move. Wait for Viktor to come around the corner. When he does this, he should send a burst of fire your way (chances are it will not even touch you). When he does this, immediately run directly up to him and start firing your 9mm very quickly. By doing this, Viktor will just stand there (he will not fire his flamethrower) and will fall quickly. Note: When shooting Viktor, there will be times when you will instantly reload; do not worry about this.