Here is a USAF Fire Department Skin for Fort Zancudo. Inspired by that of RAF Lakenheath's Fire Department, One of the USAF bases in Europe, Home to the 48th Fighter Wing.
It is for Medic 4523's Oshkosh ARFF pack.
I may update this resource with more skin variations such as numbers in the future for additional ARFFs assigned to Fort Zancudo.
Seen below is a real life image for comparison.