Weapon ranges have been increased compared to vCoH which gives an edge to specialized long range units because of this the maximum 'map zoom out' has also been increased so that you can keep track of bigger part of the battlefield. The mod aims for making the gameplay experience more realistic - it features revised damage system on all units, which makes especially infantry more squishy and thus smart cover usage becomes paramount, AT guns pose serious threat to tanks so support is needed, reconnaissance is often the key to avoid deadly ambushes and air strikes can be devastating so AA units can save you from disaster.
It was for the first time introduced to public in 2008. Blitzkrieg mod is a modification for Company of Heroes which focuses on PvP experience.