This Brief Tech provides a critical review and modernization of the baseline assumptions  for lunar surface operations originally outlined by Eagle Engineering in 1988. While the  original framework offered a valuable foundation for early conceptual studies, advancements in lunar mission architectures, robotics, autonomous systems, and in-situ  resource utilization (ISRU) strategies now require a fundamental update. The operational  speeds, equipment capacities, distances, and construction methodologies presented here  reflect current engineering practice, informed by the realities of Artemis-era mission  planning, commercial lunar programs, and improved understanding of lunar surface  conditions.