Finland’s largest airsoft milsim event returns in 2026. Battlegroup event brings together hundreds of airsoft players for a massive multi-day military simulation set on a real training area in Halli, Jämsä, Finland. This video hypes up the scale, atmosphere and intensity of one of the biggest airsoft events in Europe. Large factions, coordinated missions, vehicles, reconnaissance teams and continuous gameplay create a unique milsim experience where strategy, teamwork and endurance decide the outcome on the battlefield. Players from across Finland and other European countries join the Battlegroup series every year to take part in immersive operations across forests, roads and military-style terrain. Expect large firefights, tactical movement, realistic equipment and some of the most cinematic airsoft moments you can experience. Whether you enjoy milsim, large airsoft battles, tactical gameplay or realistic military simulation events, this video shows what makes Battlegroup one of the most legendary airsoft events in Northern Europe.