Alliance are a serie of different mods. On the Star Wars GC, you can play the civil war Empire vs Rebel era + Black Sun and soon the Republic and CIS.
This new ground structure will be builded as other additional ground defense. It runs as the Turbolaser structure, you build it in the galactic map and when you defend your planet, it is loaded at several positions around the ground map.
And it's primary role is what? Heavy anti-air, artillery, anti-heavy, multi-role?
The same role from turbolaser turrets. Anti all with different effectivity against some type of units.
Do you have to choose between these or turbolasers or can you have both?
You can build both.