Merry whatever your faith..
I hate people who don't check their work and have just spent the best part of the morning trying to fix a large project.
What happened?
I bundled 148 custom maps into a single installer that covers every map on my clans server. The idea was to make all the server maps accessible for the clan members from a CD. Great idea and not really much work, had it finished in an hour or so and installed it on my machine as a test.
While I was there, I dropped into a clan war to see what was going on....
dod_donner is a classic war map.
IT IS NOT, nor has it ever had Large Javlin like rain sprites falling from the sky obscuring everything.
Someone thought it would be a great idea to piss about with Valves rain.spr and make their own... Nothing wrong with that and I think it should be encouraged. Just remember to name it anything but rain.spr....
While I am on a rant, if you release a map to the public remember to test it on a machine other than your own. This will highlight missing wad's, models and sounds prior to the big day.