Russian battalion attacking Finland

Russian battalion is marching in forest towards a city. They hear finnish soldier shouting behind a small hill: ”One finn equals 10 russians!” Battalion commander sends a squad to silence the finn. The commander hears few shots and shouting continues: ”One finn equals 10 russians!” More pissed off battalion commander sends a platoon to silence the annoying finn. Platoon goes over the hill, commander hears rapid shooting and some screaming for a while, until sound breaks the fallen silence: ”One finn equals 10 russians!” Now, furious battalion commander sends a whole company over the hill to crush the annoying finn. Commander hears lots of rapid fire, explosions, screaming and more firing until complete silence falls. After a moment, commander sees one of his soldiers crawling back over the hill, being seriously wounded. The wounded sole survivor says weakly: ”Camarades, don’t go over that hill, it’s a trap. There’s two of them!”