This article presents an expanded critical–propositional reading of Thomas Engel’s Analytical Unified Particle and Interaction Model in confrontation with the Theory of Objectivity (TO), its foundational bibliography, its recent modal development, and selected supporting literature in physics, cosmology, and philosophy of science. The study examines Engel’s attempt to derive an analytical unified framework for particles and interactions from canonic vacuum energies, the concept of the ghoton, and formal relations linking particle masses, electroweak processes, Planck-scale quantities, and the mass of the universe. The article argues that Engel’s model is highly relevant as a regime-level analytical proposal because it seeks to overcome the brute contingency of isolated particle masses and disconnected interaction schemes. In this respect, the UPIM shows important compatibilities with the Theory of Objectivity, especially regarding the primacy of relational intelligibility, the requirement that every element be composed of prior elements, the structural necessity of boundaries, and the search for a minimal unifying grammar. At the same time, the article shows that Engel’s framework remains ontologically incomplete under modal discipline, since it begins from the physical vacuum rather than from the primordial Nothingness required by the First Absolute Truth of TO. The study therefore proposes that the UPIM should not be received as a final ontology, but as a potentially valuable regime theory that may be critically reinscribed within the modal architecture of the Theory of Objectivity. The analysis further articulates Engel’s model with the phenomenic elements of TO, the Inducing Effects, the cosmogonic theorem, and the cosmological Eras of the theory. Special attention is given to Engel’s treatment of interaction as information exchange, which is reinterpreted in light of the TO thesis that the transcendent element corresponds to the knowledge or information produced in atomic relations and equivalent to atomic radiations. By placing Engel’s proposal in dialogue with the foundational and recent bibliography of the Theory of Objectivity, as well as with authors such as Heisenberg, Einstein, Bohm, Prigogine, Penrose, Hawking, and Kuhn, this article advances a disciplined ontological reading of analytical unification in particle physics. Its central conclusion is that the UPIM constitutes a promising interlocutor for TO, provided that it is subordinated to modal necessity and distinguished from the ultimate ontological foundation of the universe. Keywords Theory of Objectivity; Thomas Engel; Analytical Unified Particle and Interaction Model; UPIM; modal ontology; particle physics; quantum gravity; vacuum energy; canonic vacuum energies; ghoton; electroweak interaction; unified interaction model; phenomenic elements; Inducing Effects; cosmogonic theorem; cosmological Eras; informational transcendence; atomic radiation; Zenodo; critical–propositional analysis