I didn't make it!
when ever i start a lan match with my friendds and i switch the map to a downloaded one it tells that they dont have the map even though i made sure that they had all the exact maps that i did and that they were all named correctly.....can any one help me with this please
I'm not an expert for this, but have you checked they all installed them into the right folders and that your games are updated to the same patch levels?
Is the map i .sgb or .sga format? If it's .sgb you need to launch CoH in -dev mod, which causes connecting problems when playing online. Try to pack the map in .sga with the Worldbuilder.