Scientist of applied sciences, candidate of psychological sciences, author of numerous studies in the field of martial arts and world criminal traditions. Head of the Memory Institute, Research Institute of World Martial Art Traditions and Criminalistic Research of Weapon Handling, as well as the International Schicksalsanalyse Community Research Institute.
In 2014, Oleg Maltsev established a special scientific unit an "Expeditionary Corps". The main task of this unit is the investigation of power - the methodologies and technologies by means of which people sought power in different historical periods, were capable of retaining the power and lead expansion on the new territories. Over the past 4 years, there were held more than 20 scientific expeditions to Germany, Spain, Sicily, Switzerland, Greece, Austria, Italy and the US. As a result, there were restored a number of methodologies and technologies of the past, and they are relevant today as they were many centuries ago. Moreover, more than 50 popular science films have been created and more than 100 books written most of which are in the closed access.