The M60E4 is pretty standard firing between the RPD and the SAW, it does lower damage than the other two peaking at 150 in single player and 50 in multiplayer, It is rarely seen in the singleplayer seen only by two troops in "Game over" the first one gets out of the passenger seat of the first truck, Who you will most likely kill first. It is difficult to obtain because the enemy drops it so close to a BMP(Or just in range) making it a great risk collecting it. The second M60E4 to be seen in this level is by one of zakheav's body guards who uses it to kill a SAS operative and to shoot at a loyalist helicopter, Unfortunatly it is unobtainable