The 91st MXG requires a Virtual Environment Trainer with expanded training modules, using headgear and controls to simulate a launch facility. The contractor must provide software for up to four personnel to train in a Virtual Launch Facility Environment, focusing on SP 102 R&R and ASU Contact R&R and Adjustment modules. This trainer enables trainers to provide input not possible in real-world settings, increasing training capacity by reducing demand on limited resources. No specific timelines, budget amounts, or performance location are mentioned in the description.