Relic and THQ released a stand-alone expansion pack entitled 'Opposing Fronts' that features the British and Panzer Elites as playable factions. Relic Online, the game's proprietary online service, is often updated with new patches that continue to balance the game, and occasionally releases new maps. The two factions fight against each other in the game's multiplayer aspect-all Americans versus all Germans-but only the Allies are treated with a full single player campaign. Company of Heroes allows the player to assume command of either the Axis or Allied forces which more specifically depict the German Wehrmacht and the US troops. The game features many alterations to the tried and true RTS formula, making the game feel more like how WW2 combat was conducted. Company of Heroes is a Real Time Strategy game set in World War 2 during the American invasion of Normandy.