Institutional Instruction Authority


Ricardo Rosa

Founder · Director

Ricardo is the founder and director of MODRPRĀTS, responsible for institutional structure, strategic direction, and operational standards. His work focuses on governance, discipline, and long-term development aligned with lawful and ethical training principles.

With experience in executive management, aviation, security-related instruction, and regulated environments, his approach prioritizes clarity, responsibility, and controlled decision-making. He operates to ensure that all instruction, personnel, and activities remain consistent with defined institutional standards and accountability.


Angel Samaniego

Master · Director of Instruction

M. Angel is a Master of the Wyng Tjun system and a senior ISMA representative in Latin America, teaching continuously since 1999. His formation is directly linked to the International Society of Martial Arts (ISMA) under Grand Master Hans Remmel.

With over two decades dedicated exclusively to Wyng Tjun and 25 years of experience in private security, his work emphasizes realism, situational awareness, and responsible decision-making. In 2024, he expanded his scope as an Escryma instructor, maintaining the same institutional discipline and standards that define his professional conduct.



Hans Jürgen Remmel

Grand Master · Founder of the International Society of Martial Arts (I.S.M.A.)

GM. Hans Remmel is the founder and technical authority of the International Society of Martial Arts (I.S.M.A.), responsible for the development, preservation, and methodological integrity of the systems taught under its affiliation.

His work establishes the instructional frameworks, ethical standards, and long-term training criteria that guide affiliated institutions internationally. Through continuous technical oversight and direct instructor development, his role ensures consistency, responsibility, and functional relevance across all I.S.M.A.-recognized systems.