Board Thread:General Discussion/@comment-111.68.32.71-20131007122233/@comment-209421-20140416034243

I still think that energy weapons are the only other possibility aside for torpedoes.

And I understand that Sonic weapons aren't supposed to be stealthy, but if focused right, it can negate the AOE effect and function similar to a laser - a harmonic bullet so-to-speak. That might have the kinetic energy to work underwater, and would be stealthy. Downside is the sheer amount of energy that would involve.