Ranged units don't exert ZOC ?
It should still be a siege because they do count for their own tile.
However, I have noticed that sometimes the icon doesn't appear straight away even if it's a siege, so that may be the case.
Re siege tower: Pretty sure it doesn't. It's basically a stronger version of the battering ram.
Hey again!
Ballistics tech.build 2 forts in your teritory.Both build by a military engenier.
How or better where can ii build those?Dont see any option on my engenier.
You might also need a tech which lets you build them (siege tactics or something).
Pretty sure the tech where they come available is the tech that unlocks the military engineer. They should have a build tooltip just like a builder does, where you should be able to select it on any unimproved tile. I believe it doesn't even need to be in your own territory. My advice, however, is to just research the tech without getting the boost, as military engineers just aren't really worth it, even considering you get a eureka from it.