I became interested in trying to describe a version of history in which a highly qualified general staff officer, GRU colonel, from our time would appear in the body of Marshal Tukhachevsky. This is the fourth version, written on the basis of the original version, many pieces of text have been inserted without changes. Here I will try to combine artistry, technology and history. Partially corrected and expanded version dated December 19 - the “artillery” product was slightly supplemented, errors in the “artillery” product and “Conversation of the MNT with KEV, SMB and GIK” were corrected. Many thanks to dear Igor14, E.S.A., I was passing by, PEB, Stalinario, Old_Kaa, Librarian, Dietrich, Konstantin Asko, Sledge Hammer and Ras Az for their invaluable help (main version).