Combat carriers and enclaves use drones, and they certainly don't last for four minutes. Perhaps re-reading the OP is worth a minute? In any case, I apologise for not making clear I was addressing the OPs comments and the thread topic as opposed to your post.
I do agree tackle drones are certainly a pretty useless thing to throw at a player. Perhaps this makes them a very good choice for the player to use in these circumstances? At which point this AI would probably count as an "Easier" type.
