Move the .bsp files to your TF2 maps folder (usually: ...\Steam\steamapps\common\Team+Fortress+2\tf\maps ).
In some gaming circles, names like "Delusion" are used for "cheat menus" or script executors.
In the context of the popular game Team Fortress 2 , a .rar file with "Delusion" in the name often indicates a custom community-made or game mode .