Hæren provides a unique FPS experience to anyone who wishes to join the ranks of the Danish Army. While in service, soldiers can expect to be trained for a number of jobs to be utilized in battles. Each job has a distinct function in battles and allows each soldier to contribute in their own way. These jobs include but are not limited to Machine Gunner, Grenadier, Sharpshooter, Combat Engineer, Mortarman, Radio Operator, and Logistician. Hæren is based around tactical squad-oriented battles on TO ARMS and utilizes the game for the majority of its events. These events may consist of multiple nations and may reach up to 100 players, with maps that force multiple fronts that require officers to be thoughtful in their strategies. Organized around the Danish Army after the Army Act of 1937 up until the Army's forced dissolvement in 1943. Though, some historical elements are taken from the interwar-period.