Quote Originally Posted by Fuchs View Post
No opponent would always "know" that the line of defence is reverse/counter slope, for there are usually several slopes and the first one could be largely a decoy. German defence doctrine advocated a deep defence which had a zone for skirmishing and delaying in front of the real deal. There were often even two fully prepared defensive positions plus if possible decoy positions. The secondary defensive position was a necessity against Soviet offensive preparatory shelling, and the Soviets rarely kept both positions under simultaneous fire.
Actually the need to deny the forward zone to the enemy of the MLR was already present in WWI, if in more static form. Through heavy patrolling, scouting, trench raids and strictly limited attacks the Allies tried often to gnaw this screening zone away. The Soviets put a great deal of effort in many directions to gather as many information as possible about the composition of the enemy defenses and operational intent. Heavy night attacks were at least once used to pull more German troops into the front zones.

You do not increase the uncertainty for the opponent by presenting your troops in the showcase.

Besides; forward slope defensive positions are easily detected, thus never an advantage from a detectability point of view. A defensive position that's well done does not tell to an aerial photo interpreter what's decoy and what not.
Reverse slope defences on the other hand cannot be observed permanently like forward slope defences and allow thus for much less reconnaissance by the enemy.
If we consider the fact that the construction, supply and relieve of relatively exposed defensive positions and outposts were in WWII usually done under the screen of darkness the advances of modern sensors and optics certainly don't help the forward slope defense, especially in relative open terrain and static situations and a highly capable "E". Factors of the METT-TC like Urban areas, dense vegetation, available and useable firepower and so on will ever influence this debate.

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To come back to the topic. Is it just me or isn't it striking that despite all the words and ink spread about the need to lighten the load at least two key weapons systems tested by US Army, the Mk 48 or the XM25? will be heavier then the ones they replace?