0,77 liters is definitely above the "2 cans of beer a day per man" rule I know, at least if you assume the normal 0,33 liter can.
Of course if they apply the rule to 0,5 liter cans, it is not
On the other hand, booze is not (yet) as frowned upon in Germany as in the US and most people can handle two cans of beer a day without becoming alcoholic or something.
Regarding the over-paranoid ROE and such, this is a disgrace.
Strangely this is not done by leftists of any kind but by a conservative defense minister. AFAIK under Struck, the ROE was laxer, but in 2005 Afghanistan was not as militant as today.
But Franz-Josef Jung is certainly a political lightweight whose main task seems to be keeping the armed forces out of the spotlight at all cost.
A good candidate for worst defense minister ever, and given such competition as Rudolf Scharping, this is not a mean feat.
It is a disgrace to leave the fighting to Dutch, Danes and even Estonians, but the Soldiers are not to blame for this.
I'm not sure about Afghanistan, but if we're in it, we should be totally in it, or get out.