Considering the game’s focus on stealth and featuring robots that are drawn to sound and light, I’m surprised the game doesn’t feature the Swedish army’s alarm mine.
The basic idea for the mine to work as an intruder alarm. Basically, it’s attached to a tree or doorway of your choice, with a string drawn across the gap where you expect the enemy to walk.
Once triggered, it starts screeching like a firework for five seconds and give off a strong light for up to thirty seconds.
