I've checked and it seems no one has posted this yet, even though it's a bug since the beginning. ( I might be wrong and someone has posted this already)
If you hack a autolathe (I only hacked the one on the lower level of engineering) to get extra equipment, you also get a Option to get a flamethrower and this flamethrower doesn't take any resources.
Steps to reproduce:
1. Go to the lower part of engineering and locate the autolathe
2. Hack the autolathe to receive extra equipment
3. A flamethrower shows up, which takes no materials to make
