for a while, I have enjoyed using this exploit, but it has come to my attention that it'd be better for the community and game as a whole for it to be patched once and for all, I'm sure you are well aware of people swimming under the map and logging into bases, and now that the knowledge of how to do this has spread, it does not make a difference as to how many grenades it takes to destroy a wall if 80% of players bypass this and decide to swim, it destroys the efficiency of bases, rendering them useless, which in my opinion is detrimental to the game as a whole. I propose a simple solution to this. in order to swim under the map, for the most part, requires 2 players which take position facing upwards of a hill or slanted terrain, player 1 lies down with their head against a tree, and the tree being uphill from the player, and the player 2 stands on the player 1's lower back and proceeds to lay down, forcing player 1 under the map. My solution to this, considering you're not capable of making the ground any more solid or in-penetrable, allow for the effect of fall damage if falling past a certain distance into the water, for every time i have done this (depending on where you are on the map) being sea level, you fall a minimum of about 20 feet and maximum distances of 100+, i understand this would directly affect the ability to jump off of a building into water below, but you could make it so if the player jumps before hitting water they do not take fall damage, food for thought.