Anything from sexual references to bloody torture will do. Keep taunting until you hear them coming. There, you won the match for your team, and earned yourself a whole bunch of nastiness from the other team. Same as the above example, same setting. Equip yourself with a lot of frag grenades, and choose an Explosive Expert specialty for best grenading skills.
Guns are optional.
Switch to grenades, and prime it, after you escorted the VIP to a small room and put down a Stand Alone Heartbeat Sensor. When your opponents can see you, let go your grenade at them, then quickly drop another one at your feet with the VIP close to you. After you and the VIP died, and the mission ended as a failure, explain to your team that you'd rather kill the VIP yourself instead of letting the other team do it. In a game of Stronghold, where the Blue Team will win by getting into the Gold Team's insertion zone and stand there for 3 seconds. Be on the Gold Team.