First-Time Siren Problems

[cereaI]

So I'm making a police car for the first time and I exported it with the siren# objects and when I turn on the sirens I get this: https://www.dropbox.com/s/342ru8ksgmoaiqr/Grand Theft Auto V 10_14_2018 6_23_42 PM.mp4?dl=0

I've seen on other cars where the siren meshes actually spin instead of just getting bigger periodically. And which siren names flash red instead of blue?