Thanks, another question,
I cutted the first 46 bytes of O.pbo, I put the new O.pbo in addons, setup a bridge in WRPedit. Save the map, make a config.cpp. Putted it in the addons folder (after make the pbo-compression) play the game, open my own map and..................
NO RESISTANCE OBJECTS, NO TREES, NO BRIDGE, NO ROADS, can somebody tell me what to do?