You mean you dont have any of these files? If you open the .sma you simply just scroll from top to bottom to see what files you need. You need models, sounds and sprites as it seems. Also if you want to compile this you will need
Code:
#include <zombieplague45>
#include <fxShopsql>
#include <fxItemid>
#include <fxAPI>
#include <fxZPlague>
#include <zfxEffect>
and these are not default includes.
But you could open the .sma and CTRL + F for ".spr", ".wav" and ".mdl" to see what you need and where it should be.