TechSy730: Didn't know about the auto-target for carriers.. more pieces hidden in the nooks and crannies of the game lol. The thing about carriers is that they fly through all your static defenses. Individual ships however get caught in tractors and blocked by FFs.
The bit about Enclaves and Wardens was anecdotal. ~5600 assorted ships in my fleet waltzed into a Mk II AI world that had a reported 300 ships. Aside from normal traffic in AI planets it seemed like all that I was fighting were drones. A planet that should have seem me with minimal losses ended up with the complete loss of that entire fleet, and no infrastructure damage to the AI... ~5600 ships stymied by a continuous wave of Neinzul Commandos and Bombers .
The point at which I ended my last game (its not playable anymore) I had taken the main cross plant on the "X" map. Warp jammer station to keep the AI from being alerted and ALL the T1 and T2 turrets I could place to protect my branch of the map. Some 20 Fort 2's and a variety of FFs to protect the line. I was in the middle of building a few goodies from the trader (Armor boost, armor inhibitor, BHM, radar jammer II, counter spy and a handful of orbital mass drivers) and the planet is the ralley point for my shipyards. AI currently had ~20000 ships camping the wormholes (23 carriers) and that,s after I destroyed 11 carriers and a couple thousand ships at one wormhole.
With the SCL, it is the only way I can keep the AI progress down over the long haul. My goal is to wipe the AI completely out of the system. Length of the campaign isn't an issue. SCL are they best way to manage AIP over the long term. And yes, I fully expect my endeavor to be an exercise in futility