how do you install maps.

whenever i install them the only maps that come up are the original 15maps. i thought there was suppose to be 35 maps!

Put the .PMS files into the \Maps\ folder.
In Soldat, you won't see all the maps at the same time. That's because Soldat categorizes them by Deathmatch, Capture the flag and infiltration.

How do I install new maps, mods, or interfaces?