42 Engineering services, namely, engineering for the development of hardware and computer software; Engineering services, namely, development, design, and analysis of models, simulations, and simulators for high fidelity modeling for communications systems, engineering studies, research, testing, and analyses; advanced technology research, laboratory research, and testing in the field of simulations, image recognition, optics, networks, information assurance, and communications systems; all the above for the Department of Defense, Homeland Security, government, and commercial markets