Crouch under shallow water(Heads fully inside the water)wouldn't cause Suffocation
Another problem which is when order the AI to dive in the water(not DIVER!)
After the AI start to suffocate, it will get up to the water.
But the AI still killed by Suffocation even though the AI is fully above the water level.
Updates: Some Deeper shallow water area, wouldn't cause suffocation even diving inside the water [founded around Grid 049028]
Updates: Some place after suffocation effects show up, even the player get up on the water, stilled killed by suffocation. [Founded around Grid 049028]