Thanks for your input . . .
In regard to the Armistice, my idea was for the Germans ask for an Armistice, based on the then-current military situation, that is, following the cease-fire, the respective armies retain their positions; no withdrawals or advances, these would be negotiated at some later time.
Then, under pressure from Congress and the public, President Wilson announces not only are the US troops to be brought home as soon as possible, but that the USA will take no part in the peace negotiations. This then emboldens the French to take a hawkish line, and demand punitive conditions for an Armistice and eventual peace.
Since the Germans are only looking for a pause in hostilities, in order to regroup and re-arm, the US announcement is music to their ears, while the French position gives them a perfect reason to both rally German public opinion, and to recommence fighting. In particular, in diplomatic notes passed to the Americans, the Germans state that they expect the USA to remain non-belligerent in any re-commencement of hostilities.
With the guided missile, I'm looking for a solution to the 'Panther problem'. I'm thinking that HEAT or HESH warheads on guided missiles would substitute for a heavy anti tank gun, as there were never enough 17-pdrs, and the US 76mm proved less than effective.
To re-phrase my original question more accurately, did the Allies possess the technology, to enable them to develop and deploy a wire-guided anti-tank missile in the post D-Day period ?