Create a new surface by clicking [Right mouse click -> Create -> USK -> Surface Preset]. You can set various step sounds for different characters, just use tags.
Values
Value
Mean
Sparks
It will fly off when bullets hit a surface.
Hit
Bullet hit
Hit Audio
Sound of a bullet hit
Shell Sounds
Audio when a shell touch a ground
Footsteps Sounds
Everything is clear here 🙂
Use in a game
Add the Surface script to scene objects and set a Surface Preset in the Material parameter.