I believe the title is self-explanatory.
Red County is by far the only map that doesn't seem to have any Shamals lying around in its otherwise magnificent airport. I take it that Red County lacked an actual airport in the past which might be why it's never had Shamals, but now that we have a full-fledged airport, I believe having a Shamal wouldn't do anybody any harm.
Here are the coordinates of two proposed spawn points, in case it might come handy (if ever this materialises):
AddStaticVehicle(519,-103.3952,155.3487,3.7910,157.1994,54,185); // Shamal close to waterbody
AddStaticVehicle(519,-218.3991,-129.7219,3.7189,338.6492,19,214); // Shamal other end
First proposed spawn point, the other one is diametrically opposite on the far end of the runway