Introducing 3 types of cannon mounted turrets.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Not sure if this would be too much but would genuinely love to see a mod that includes heavily armored enemies that constantly attack bases, or a reprogramming of the destroyer to fill that role, so that turrets like these feel mandatory.
Manipulating enemy forces are outside the scope of this mod.
Have you tried https://mods.factorio.com/mod/ArmouredBiters yet? Seems like something you want to have.