Small one here, made the landmines have a tiny light that flashes randomly every 5-12 seconds when armed. They are still very hard to see in the dark, but it rewards observant monkeys; it could be pretty annoying to get blown up by a landmine that was literally impossible to see in the dark even when you were being careful. The old stealthy mine experience is still available as a cheat code toggle SNEAKYMINE, that will persist between sessions.