Devil 11,
The only thing I could think of would be to physically place enemy SAMs and AAA in vicinity of Nellis.
Make separate target entries as below:
[TargetAreaxxx] Name=Nellis AAA Site #9 Position=xxx000.000000,xxx000.000000 Radius=2071.067871 ActiveYear=1966 Location=2 Alignment=Enemy Target[001].Type=AAA Target[001].Offset=-40,0 Target[001].Heading=0 Target[002].Type=AAA Target[002].Offset=10,0 Target[002].Heading=0 Target[003].Type=ZSU-23 Target[003].Offset=100,50 Target[003].Heading=90 Target[004].Type=ZSU-23 Target[004].Offset=-100,-150 Target[004].Heading=90 Target[005].Type=ZSU-23 Target[005].Offset=-100,150 Target[005].Heading=90 Target[006].Type=ZSU-23 Target[006].Offset=-200,-150 Target[006].Heading=45 Target[007].Type=ZSU-23 Target[007].Offset=-200,150 Target[007].Heading=135 Target[008].Type=ZSU-57 Target[008].Offset=-300,150 Target[008].Heading=90 Target[009].Type=ZSU-57 Target[009].Offset=-300,170 Target[009].Heading=90 Target[010].Type=ZSU-57 Target[010].Offset=-320,170 Target[010].Heading=90 Target[011].Type=ZSU-57 Target[011].Offset=-320,150 Target[011].Heading=90 [TargetAreaxxx] Name=Nellis SAM Site Position=xxx000.000000,xxx000.000000 Radius=3000.000000 ActiveYear=1969 Location=2 Alignment=ENEMY Target[001].Type=SAMRadar Target[001].Offset=-292,206 Target[001].Heading=90 Target[002].Type=SAMLauncher Target[002].Offset=-392.00,381.00 Target[002].Heading=330 Target[003].Type=SAMLauncher Target[003].Offset=-192.00,381.00 Target[003].Heading=30 Target[004].Type=SAMLauncher Target[004].Offset=-32.00,140.00 Target[004].Heading=90 Target[005].Type=SAMLauncher Target[005].Offset=-492.00,206.00 Target[005].Heading=270 Target[006].Type=SAMLauncher Target[006].Offset=-192.00,31.00 Target[006].Heading=150 Target[007].Type=SAMLauncher Target[007].Offset=-392.00,31.00 Target[007].Heading=210 Target[008].Type=ZSU-23-4V Target[008].Offset=0.00,0.00 Target[008].Heading=45 Target[009].Type=Zil-157Command Target[009].Offset=50.00,20.00 Target[009].Heading=90 Target[010].Type=SA-9L Target[010].Offset=-50.00,20.00 Target[010].Heading=135 Target[011].Type=SAMRadar Target[011].Offset=292,-206 Target[011].Heading=90 Target[012].Type=SAMLauncher Target[012].Offset=392.00,-381.00 Target[012].Heading=330 Target[013].Type=SAMLauncher Target[013].Offset=192.00,-381.00 Target[013].Heading=30 Target[014].Type=SAMLauncher Target[014].Offset=32.00,-140.00 Target[014].Heading=90 Target[015].Type=SAMLauncher Target[015].Offset=492.00,-206.00 Target[015].Heading=270 Target[016].Type=SAMLauncher Target[016].Offset=192.00,-31.00 Target[016].Heading=150 Target[017].Type=SAMLauncher Target[017].Offset=392.00,-31.00 Target[017].Heading=210