I've been scuba diving for about 3 months now and its fun to do it every once and a while in GTA V. I just wanted more realistic gear to add to the immersion. The gear in the game is a single tank with a jacket BCD and a full face mask with a second stage regulator built in. In GTA V i like to dive deep, something you'd never do with a single tank as you'd suck it dry within minutes that deep. Therefore, you'd need 2 or more tanks on a higher mix like nitrox, heliox, trimix, etc to increase your NDL. You'd also need a higher displacement BCD, preferably with a backplate. I don't really care much about the BCD but it would be nice for someone to model the twin tanks.
Something like this would work in this configuration.
Maybe someone could think of doing this, and it would be really cool. Thanks.

I always happen to have the weirdest problems with my game. Now, I have just tried installing addons. Works great! Like fantastic! I love it so much. My game works fine when I install 2 addons, but once I install that third one it just messes everything up. The game works perfectly fine with 3 addons, but there's a twist. When I go to spawn it, say "pavehawk," it says "invalid model" when i'm sure I did absolutely everything right. I then though "Huh, that's weird." So I just decided to do an LSPDFR patrol and none of the cars I replaced in my "paatchday17ng" folder show up. All stock vehicles. Yet, the i accidentally replaced the "bison" in my "x64e" folder and that shows up! What's going on!?!? I even tried installing the gameconfig file that allows more addons (i think thats what it was) and 5x peds and cars. So, summary; 3 addons, no addon cars or replace cars work. Help, please!