Random entity/prop spawner/scatterer

Hey

What i am requesting, or asking if possible is a script that randomly selects and spawns certain props, sweps and/or entities around a map. This would be for a serious Zombie Role Play server, where players cannot spawn weapons, props or entities. They would have to scavenge for these rare supplies and ammunition.

These props and entities would include weapons, ammunition, food, props etc.

With my very basic LUA knowledge I have thought of several ideas, for example integrating an /addspawn for these random spawns, or even just a random position on the map, or even a script that spawns these props several units above the nodegraph.

I have searched around for a script like this, but haven’t been successful in finding one.
I know very basic LUA, so that rules me out making one in the next few weeks…

Thanks.