In this tutorial, we learn how to do throwing knife tricks in COD: Modern Warfare 2. Start out on the level by running and killing everyone that you see in sight. You will want to grab your knife and spin it into the air when someone is close to you, so you can kill them quickly and get points. As you do this, you will learn how to throw your knife in the air and have it hit others that you want to kill. When you do this, you will see who you have killed and get a new knife to throw at others to continue to go through the levels.