You mention adding a 2nd Tier... I would love to see this have an optional dependency with Planet Arrakis (hopefully it'll start being updated again soon) https://mods.factorio.com/mod/planet-arrakis and if that mod is detected have the 2nd tier be a Thumper from Dune. Personally I think the 1984 version is better (the Thumper, not the movie, don't come at me). https://i.makeagif.com/media/1-26-2017/kn65Xe.gif
