Converts Marine Life Spawners as well, even with the Allow other enemies, new factions setting on and setting sides.
Main goal is just to have biters capable of crossing and attacking in the water
Comparison on two separate new games:
With: https://i.imgur.com/9vEqlsI.png
Without: https://i.imgur.com/OnIxHk2.png

Yes, all spawners are replaced by default.

If you want the enemies of other mods to remain, then allow the setting "World: Allow other enemies", and select the settlement option. Valid only when creating a new game or adding a Rampant Fixed

And, you're right. The mod is not compatible with water squads - this surface is considered impassable.

I may have to mark this mod as incompatible in the next version. However, there are some ideas, but I need to check...Anyway, it's not fast

i wanted to add something to this:

it looks like that sometime nests are generated on the water with the setting "World: Allow other enemies" on.
maybe check for the tile underneath if possible and not already done?

I guess it's a good idea. Do not replace with rampant nests what appeared on the water
I'll add this to my to-do list