i blew up a bunch of the walls on both forts so i could have a clear shot at their cores from between them. you can see the fortress extents and stuff for each in the radar. turrets, projectiles, core locations.. now to take some shots at cores.
blammo! each fort core has different countdown rates. i could set up as many forts as i want to now, i got two and thats good. i could even set them up to shoot at each other and they'd do damage to each others walls. once a projectile is launched, it has no owner or target, so any shot or missile can do damage to its owner just as easily as another entity.
more as i progress.