I have been kicking around an idea this afternoon and wonder if it's crazy or possibly workable. The list is this:

Obsidian Squadran x2

Black Squadran x4

They all have Stealth Device

Would a 4 tlt list just eat this alive? I know fat turrents will be an uphill battle but I was hoping the agi boost and ps over 2 would allow better manuevering for full shots on multiple tlt. It would allow blocking for fat turrents though, thoughts?

I think you're better with the 7 tie swarm or the full 8 since black squadrons do nothing for you here. Extra body, extra gun, blocks better...

Get 6 Obsidians and Howlrunner to reliably remove 1 TLT on the first turn of fire.

Stealth device isn't great against twin laser turrets, because you don't get the extra range 3 defence die, and it's lots and lots of 3-die attacks that are good at hitting but have a damage cap.

Since stealth fails the first time you're hit, I don't think stealth is the best idea.

PS3-4 TIE fighters (or Z-95s) should eat their points in twin laser turrets fairly efficiently, but I'd take other options for preference.

Howlrunner + obsidian squadron pilots should work nicely, or else take my current favourite; black squadron pilots plus Crack Shot, which can reliably hit even at range 3.