I would like to inform you about what most of you did not know.

Credits to Nevol for analysing the stats and creating an awesome steam guide to stealth.
This is the steam guide https://steamcommunity.com/sharedfiles/filedetails/?id=1714654925 its in Russian.
I am now going to translate the most important information to english.
First image here

This is the amount of sound that is generated by devices, the devices are all set to 50% power.
Brown = creatures
Orange = Dugong submarine
As you can see, the engines make a huge noise, that's why creatures start "spawning" on you.

Somewhat creature intellect, when crawlers are at 10 HP they will start to run away and never attack, when mantises are at 30 HP they will run away, so you can get a pet. "get down, dog"

Next image.
Here you can see that husks hear better than they see, they are kinda blind.
If you see a husk at the other end of the halfway then DO NOT run, you can safely crouch away.

Example "The husk can only spot you from the red spot" "If you don't run in panic like an idiot".

Now lets talk about decoy, decoys are the number 1 preference of each creature, that means, they will stop doing whatever they are doing and go to the decoy, and the decoy range is pretty huge.
You can escape a moloch because they are blind with a decoy, just go slowly to not create much sound.

Next up, auxiliary batteries, they are the number 1 best tool for stealth.
By using auxiliary batteries to power your engine and ballasts and shutdown the reactor and sonar, you will be INVISIBLE to blind creatures. 5000 energy will keep you running for around 30 seconds, enough to escape a moloch that's literally next to you. This is what I mean. at such a close distance, the moloch doesn't notice us, and we can slowly drift away.

Now lets talk about creature statistics, the pros and cons.

-Coelanth: They are almost blind, will see you from a close distance. Relies more on hearing.
-Endworm: Same as Coelanth, BUT his hearing is 2x times better, he will hear you even when you are using batteries and going 2 kmph
-Moloch: Absolutely blind, medium hearing. Moloch boss and moloch babies are the same.
-Hammerhead: he is totally deaf, but good sight.
-Watcher: Deaf too, will only attack when provoked.
All other creatures have medium sight and good hearing, so nothing to talk about.

Congratulations, you are now a russian tryhard.