Adds a fully animated attack helicopter to the game. Ideal for getting from A to B quickly, exploring the map, building islands and nuking biters from the sky. Now 84% less buggier!
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
See this for detail, I don't know what causes this. https://forums.factorio.com/viewtopic.php?f=7&t=50489
Responded there.
