I'm not sure I'd describe Space Planes as "swarm units". More like... "tactical murder dispensers". :p
But yeah, I tend to agree that autocannons are pretty weak.
Funny to see raiders listed as beastly - I remember back when they were basically voted most underpowered unit in the game...
I consider any ship with 120 or higher ship cap to be swarmer
Autocannons are a joke. Not only are their stats bad.. they have a bad set of damage multipliers. I'd like to be afraid every time the AI unlocks swarmers.
Well just look at Raider's stats and you see there's nothing funny. Their stata got buffed by a lot and their damage multipliers were changed.