Support is a class in Day of Defeat: Source.
Support players are generally focused on attacking enemy positions alongside their team, laying down fire with their rifles or throwing grenades to flush out enemies. Support players typically charge in after Riflemen or Assault players due to the lower effectiveness and higher recoil of their rifles while in close combat compared to Submachine Guns or the M1 Garand or Kar98k. Also, unlike Assault, the Support usually has limits on unmodified servers. Because the recoil of an automatic BAR or StG-44 is quite high, crouching or proning is recommended for sustained fire on enemy positions.