You might damage it, but it will likely be impossible to kill it.

So the moment they enter visual range, you'll literally end up at the bottom of the sea.

Their steel flesh and their oil-like blood make their bodies immortal.

The enemy are much like miniaturized stealth warships. Modern vessels designed for extra long-range combat probably won't stand a chance.

With radar being inoperable, the effectiveness of long-range missiles have largely diminished.