I think it's not a good idea to flood the whole map with water. Did you figured out how long it needs to get from one flag to another? I needed 30 seconds, and I used some MG boost. Combined with that physics under water... Well, it's a pain when you can't avoid enemy bullets :)

Thats what all those random walls are for... Did you notice I put in jumppads? Anyway, what's ur rating?

I changed it to conceptual because it really won't be playable for a while, but I'd like to see others try, and maybe suceed, to get a good underwater map. I think that a playable underwater map would be innovative, amazing... and fun! But seriously, we won't be able to test it's playability TRULY until more people get the cvs. (Hint, hint)

the cvs is the developmental version aka a beta testing not for playing the cvs will become the next release on the 15th of April so all of you just need to wait

Even with the walls and the jumppads (I didn't saw), you are simply not fast enough to get behind a wall... I can't really imagine gameplay on such a map, sorry. That's - and because it's conceptual - why I don't want to give a rating yet.

EDIT @Homi:
June. It was June, actually :)