Water

From TF2 Wiki

Water is found in many maps as a terrain feature. Official maps that include bodies of water are 2fort, Well and Hydro. There are two 'types' of water, shallow and deep. Shallow water will absorb some of the impact from a fall, and reveal the footsteps of Spies. It is otherwise a cosmetic part of the game.

Deep water allows a character to fully submerge and swim around. Immersion in a body of deep water will negate the fire effect instantly. Many maps also feature submerged routes into the enemy base which render an advantage to the attacking team as they are often poorly covered in comparison to more direct entrances. Deep water also completely negates falling damage.

In addition, Engineers can construct buildings underwater. Due to the low visibility of submerged objects, this provides a good position for a teleporter or a sentry gun for a few surprise kills.

Deep water also has disadvantages.

• If a cloaked Spy leaves a body of water, water will drip off the Spy for a short period, giving his presence away to the enemy as his footsteps will be audible and visible.

• Deep water renders the Pyro's flamethrower useless.

• Deep water decreases maneuverability. Swimmers are vulnerable targets for enemies who have the advantage of higher ground.

• Remaining on the surface of the water can affect vision, making aiming harder. To counter this, fully submerge, especially if battling an opponent underwater.

• Remaining submerged in water for too long causes the player to begin drowning. Drowning causes periodic loss of heath and vision trouble. After breaking the surface, some of the health lost due to drowning regenerates over time. Standing next to a dispenser negates the damage caused by drowning. Therefore, it is possible for a player to remain underwater indefinitely.