watchtowers and turrets

[DangitRandy]

Two ideas I've been pining for:
• Watch Towers
A simple tower which a pawn might "climb" above obstacles to get line-of-sight and a range bonus for their ranged weapon. It could be just like the watch towers in Stronghold. Construction costs some wood, metal, or stone blocks, perhaps about the same cost as a wind turbine but no components. The range bonus would depend on the height, so proportional to the cost. It would be operated just like the mortars are now.
• A change to improvised automatic turrets
Why are colonists able to build automatic turrets while still unable to build equivalent handheld weapons? Instead, i propose the improvised turrets should be more like computer controlled tripods, which can aim and fire whatever ranged weapon you attach to it.