The supersonic train mod, but I edited it so that players won't destroy every train they have in the case that someone manually controls a locomotive that can steamroll a rail network much faster than normal human reaction speed can stop it. I did not make this mod. This edit was made off of Schjefph's port of the mod for 2.0, which can be found here: [https://mods.factorio.com/mod/supersonic_trains]
Small changes concerning balance, gameplay, or graphics.