Oh my god this is great in so many ways. It feels very good to play and there are so many different options. I would however, like to point out some issues.
1. Flame, laser, stacked munitions, and smoke all work underwater for some reason. I think that there should either be a diegetic reason for this or the weapons should be disabled (or just not work properly when brought in).
2. When smoke is deployed, it can't be shot through. At least not with the laser. It's like there's this hitbox blocking projectiles from passing. I think there's the same issue with other grenade types.
3. I also don't know how to use the melee, so... how?
Other than that, it was perfect!