Engineering services, namely, engineering in the defense, intelligence and civil space industry to include engineering and design, modeling and simulation, systems engineering, analysis, software development, cybersecurity engineering, evaluation and test; Research, design, development, systems engineering, analysis, integration, testing, and full acquisition lifecycle engineering in DoD missile defense, radar, space, intelligence, aviation, and civil space systems; Research, development, engineering and testing services in the fields of radar engineering, missile engineering and hypersonic weapon systems; Systems engineering and integration, model-based systems engineering, system performance analysis, modeling, full acquisition lifecycle engineering and programmatic expertise, in the fields of missile defense, aviation, intelligence and civil space; Scientific research services rendered to government in the fields of national security technology, national defense, design and integration, test and evaluation, defense communications, space transportation and exploration, space systems analysis, security systems and support, information and communications; Engineering services, namely, organization and execution of system engineering for complex aerospace and defense projects including the detailed definition of requirements planning, design reviews, software development qualification test planning, test execution, acceptance test activities, and pre- and post-test analysis, all in the fields of national defense, flight testing and operations, and tactical data link testing; Design of instrumentation and/or applications in support of test range operations for government missile defense systems; Provide technical support, namely, monitoring technological functions of tactical data link systems for the national defense industry