Hello everyone. I'm new on modding, so I barely understand how to solve a problem related to it, and I'm writing this topic here because the ugx page of the Der Riese Mod has been locked. I really like the map Der Riese, and when I saw xSanchez78's mod I immediately installed it with the .exe file that I found here: https://www.ugx-mods.com/forum/mods-releases/61/waw-xsanchez78s-der-riese-mod-v1-0-6-final/12300/
The problems have started when I tried to load the mod from the cod main menu, because after having launched it, the game brings me back to the classic waw menu, even if the mod is loaded: so I tried to launch the mod with /devmap mod (the .ff file is named mod.ff), but after a few seconds it was shown to me the error "Couldn't find the bsp for this map. Please build the fast file associated with maps/mod.d3dbsp and try again".
The mod folders are located in C\Program Files (x86)\Steam\steamapps\common\Call of Duty World at War\mods\Der Riese Mod and also in C\Users\username\AppData\Local\Activision\CoDWaW\mods\Der Riese Mod.
What should I do to solve the problem?