• Flooded floors reworked: wading through water now makes you LOUDER, not quieter. Every splash carries, so monsters hear you from much farther — and crouching no longer fully hides you in the water. (It still slows you down, and more as the water rises.)
• Water ripples: the player and enemies now leave soft ripples spreading across the surface as they move through a flood.
• The Haze's drone is now a proximity scare — its "whoooom" only carries a short distance instead of echoing across the whole floor. Other monsters' calls were tightened up too.