During the game, a character can hide from enemies in stealth zones. When the character enters a stealth area, he becomes invisible to opponents at a distance. If an enemy comes too close to him, then he will be detected.
Create a new Stealth Zone by pressing (Game Object -> USK -> Common Components -> Stealth Zone)
Adjust its position and size
Optionally add a grass visualization (or something else)
For low grass, set the "Hide Only in Crouch State" parameter so that the character is hidden only in the crouch state