Looking for Camera 'Quake n Shake' Code

"RotateEntity provides the desired effect."

Yes, but if I'm not mistaken, you could replace all of this:

RotateEntity this\entity%,EntityPitch(this\entity%)+Rnd(-x#,x#),EntityYaw(this\entity%)+Rnd(-y#,y#),EntityRoll(this\entity%)+Rnd(-z#,z#)


With this:

TurnEntity this\entity%,Rnd(-x#,x#),Rnd(-y#,y#),Rnd(-z#,z#)