Ditto, the diversity of the game has really improved lately but edge is still with fatter turrets and the game would be improved even more if small base dogfights were more prevalent (yes the swarm is still quite good).
I'm not sure the TIE swarm really is all that good right now. There's just so much stuff out there that can 1-shot TIEs, doesn't have to really care about missing the actions due to being blocked, or has an area effect.
Soap box moment over. My recommendation is to fight a dual decimator with gunner on each. That's a really tough list that basically requires you not hit obstacles or fly off the mat to be very competitive.
That may be true in an area that isn't very competitive. I think the hot players in my area (of which I'm not one) would eat these alive if not flown with more finesse than the ability to not hit obstacles or fly off the board.