When you need to call down the thunder to deal with those pesky biters, launch a rocket with an ion cannon into orbit and show the bugs who's boss. Update for Factorio 2.1
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
Play it your way.
My cannons are firing automatically even though I have auto-fire disabled.
i don't know why this is happening to you. simply increase the number of manual canons and it will stop.
Thanks for the response, I'll give that a try.
default way
a workaround: if this number is too hight, the autofire is also off