3D in FOEngine is still experimental. Lowers FPS on potatoPCs to 5. Has many graphical bugs, requires lots of work on and takes much more resources and space than typical sprite. Also HUMMVE is not 3D but imported sprite that is pregenerated 3D model. Pashturs, centipides, giant wasps are current ingame 3D rendered mobs. If u encounter crashes disable masking in FOConfig.exe.