HALO jumps are used to enter hostile territory undetected when threats to both Airmen and aircraft are expected.
Navy's Littoral Combat Ship Simulator
For certain duties on the littoral combat ship (LCS) platform, Sailors must complete their qualification training at the LCS training facility in San Diego using a process called "Train to Qualify" (T2Q). A fairly new concept for the surface force, T2Q shifts qualification training from the ship to shore training, enabling LCS Sailors to report to these ships ready to stand their watch and execute assigned duties. The process trains the crew members in a simulated environment based on USS Freedom (LCS 1) and USS Independence (LCS 2). Simulators integrate LCS command and control, propulsion control and bridge control systems to support individual training in a team environment at the basic, intermediate and advanced levels.