Water damage?

[Felix-The-Ghost]

The idea is not totally absurd but it implies a great deal of coding....

As I posted above the code that would be used for "triggers" is there already. All you'd need is to standardize/sync hp loss across players when one person is submerged for a long time.

Though, in my opinion, not a lot of maps should have areas to be fully submerged and thus benefits of implementation would be marginal. Even if it was in, people would just surface every once in a while to restore their "breath".