http://imgur.com/a/Z1c1W  So I have started work on my second vehicle, however with this one I am not using a light bar but I would like to convert the left extra light (the red one) to a steady burn when the sirens on. But I also need to disable it as a standard high beam. 

 

The second issue I need assistance with is getting windows breakable, someone was kind enough to clarify that I can set material type on the windscreen and that will get them to be breakable, but didn't clarify how I could do so. 

 

Any help would be appreciated. 

Ok... I will try to help. Now did you model this vehicle or did you use eine out of the game? Also are you using Zmodeler 3? I've had see windows issues before but not when I've imported a vehicle from the game.