What if Cameroon clearly aimed to become a regional power by 2050? Assuming this were the case, this white paper decrypts the challenges of the profound transformation that would ensue and proposes a detailed roadmap to achieve this goal, along with precise indicators to measure each development. Drawing on a novel approach that integrates the trifecta of hard, soft, and smart power, the work - in this public version - offers a comprehensive and innovative vision of building regional power in Africa in general and in Cameroon in particular. It combines the findings of rigorous research with a process of collective and strategic intelligence involving all stakeholders in Cameroonian society. (Socio-Economics/Social Sciences/Geopolitical)