Have searched but unable to find these files...Help appreciated! Thanks...

MAIW_Aircraft_Shelter_Library
MAIW_Cargo
MAIW_Nellis_Walls_Library
MAIW_RAF_Hangers_Library
MG_MAIW_FireTrucks

It seems surprising that you don't have the MAIW Global Scenery Library Objects package installed, as that is where you will find 4 of them. The fifth is unsurprisingly in the Nellis package.

Most are in the MAIW objects library downloadable from here, and Nellis walls are surprisingly in the Nellis scenery

Didn't realize that! I do have the MAIW Objects Library installed...Do I need to separate the file in the Nellis scenery and copy it somewhere else? Thanks for your help and patience...

The answer is normally no if you have the Nellis scenery active.

I am kinda curious as to what you are trying to do, as you have the libs you asked for installed already.

I did not know that the mentioned files were included in the Global Library...Thanks again...