That, and the leviathans become a total non-issue once you get the stasis gun. You can find the blueprint fragments in fairly safe and easy to reach places (albeit in a somewhat RNG dependent manner, I believe). A fully charged shot freezes one in place for a full 30 seconds. An uncharged shot nails it there more than long enough for you to make the next one a fully charged one. Then you can either knife them to death trivially or, if you’re a weenie, simply swim away.