Mission Brief December, 1944, Western Front
The half-frozen town of Kalt became the setting for some of the most brutal fighting of the war - fire fights raging in the streets, houses, and sewers.

U.S. Army: Five Capture zones
Take two men and rush to the bridge, use the sewers to capture the first and second Wehrmact zones.
  
Wehrmacht: Five Capture zones
Do not let the allies take the bridge, use your grenades, defend your zones and attack using the sewers.