Terms for subject Military lingo containing the Old

English	Russian
come the old soldier	важничать (MichaelBurov)
come the old soldier	хвастать (MichaelBurov)
come the old soldier	разыгрывать из себя бывалого солдата (It sometimes means an individual who will not scruple to take advantage of the credulity or inexperience of others. Hence to come the old soldier over you. wiktionary.org MichaelBurov)