From Official Barotrauma Wiki
|Can Enter Submarine?
only 1 of the items marked with an asterisk * may drop at a time
| name = Name override
| image = Image.png
| hp = HP number
| swimspeed = Swimming speed
| walkspeed = Walking speed (if none, just use swim speed)
| armor = Armored points
| weakpoints = Weak points (not armored)
| armorval = The amount damage to an armored part is multiplied by (eg 0.1)
| entersub = Can this creature enter the submarine?
| sight = Sight value
| hearing = Hearing value
| behavior = When is this creature aggressive? (eg Always, Only to Humans, Only to Submarine)
| drops = Item 1 (or item set 1) this creature is able to drop upon death.
| chance = The probability of the item(set)1 being dropped by the creature on death in percent.
| add drops2/chance2, drops3/chance3 to add the following items or item sets. Add an asterisk '''*''' after the mutually exclusive items.
This infobox goes on every creature page. If you don't know what to put in any of the above values, you can find everything in Barotrauma's files.