jb_underwaterwater_prison is a remake of ba_underwater_prison (Reaper), this map was one of many popular maps on a CS:S community I played.
Initially I ported the map straight from CS:S, however the CS:GO communities have a rather different play-style so the map has been edited to suit the now more common play-styles.
Note: The map has not been touched in years, it is recommended for a small to medium player count as it is not massive and there is limited map activities. This map is more of a survival map, chances are it won't fit your server's gameplay but it may be fun for servers to try out anyways.
I am releasing this publicly since the community I ported this for is no more.
I won't spoil too much about the map, that's for the survivors to figure out.
Feel free to use this map on your server.
Excuse the obnoxious map credits ingame, it was there as a deterrent at the time.