On the bright side however, along the map there's a package to be used in maps if you wish, or to modify at will to suit your needs. The CSMCXExtras.u package, contains a sprite based coronas and lensflares system, a statue decoration system with overlays (although it can be used as any kind of decoration) and a particle system (along some presets such as snow, rain and smoke).
The package is fully optimized (fast and very low memory consumption, as the particles are never destroyed, but completely recycled instead) works online and processes everything on the client (meaning that the server is not affected by any of it).
I didn't build a manual for it since odds are that despite this it probably won't get used, so in case you use it and have any doubts, post them up and I will answer them.