Storm Thrower: There's been a lot of discussion (and many mods) about incendiary weapons like flamethrowers, obviously doesn't quite work with fire in space and getting the fire into the ship, but I think we can use the new ion storm damage to get a similar damage-over-time sprayer to soften up enemy armor. Especially useful since Cosmoteer doesn't use ion as a shorthand for stun like a lot of sci-fi, opening it up as a new lingering damage type. Could even be made as an energy-weapon counterpart to the chaingun, drawing from modular tanks to extend its firing time.
Smoke Screen: This one I'm hesitant about simply due to scales. The triangle grid of the current preview nebulas is absurdly big compared to ships (#1240477727597920357 message), presumably without much flexibility in size, and letting even a big flagship fart out a whole triangle is a little extreme. That said, it's more than enough to cover a combat area like I had worried about before, and works fantastic for stealth mechanics. I want to deploy a gas cloud so badly and ambush a blinded ship inside. Could also be tied into cloaking plans and just put your ship under the stealth effects of a gaseous nebula without actually producing it.