First you need a class with commando and a tactical knife. This is cool but only really happens in a private match if it's setup.

Go on the orange chute connecting to the plane and look through the window on the right. You will see 2 chairs.

Have a person crouch next to the chair on the left but so you can still see them through the window.

When you see them through the window, crouch and aim your crosshairs at their head and knife.

You should commando lunge up the plane. This may sound difficult but it's pretty easy.

Make sure the person you do this with is on the other team.

If you need help message me.