Sniper Mast: A new defensive structure with extremely long range and massive damage. A single gunner sits atop a tall mast like structure. The structure can be placed anywhere and has a range of 25 tiles. It deals 200 dmg per shot, but has a slow rate rate of fire. Sharks: placable only in the water sharks attack any swimming pirates, dealing damage as they cross through them. Does not need to be rearmed. Quicksand: slows down pirates crossing through it by 25% and pirates deal 25% less damage.Does not need to be rearmed.
I think these have been suggested in the past. But certainly worthy of another reminder.. Whilst the Sniper Mast can be an added defence early in the game (PH3-4), the gunner who sits atop of it could also be introduced early and trainable up through the levels of Academy in both range and accuracy.