The interior of an abandoned warehouse has been turned into an embattled Middle Eastern town through the use of sets, and special effects such as projections, pyrotechnics, sounds, and smells.
Stress inoculation is conducted at the facility where a rifleman is put into multiple situations that in turn replicate the stressors and physiological responses faced in combat, thus building the individuals stress-immune system.
"[1] The IIT facility was built by the Office of Naval Research and PMTRASYS at the request of the Commanding General, I Marine Expeditionary Force (MEF), then LtGen James Mattis, and by elements of the I MEF TEG (Training and Experimentation Group) to include the Battle Simulation Center, to serve as a way to inoculate the Marine Rifleman with the sights, sounds, and smells of the chaotic environment experienced in close quarters urban warfare.
[3] Technology elements of the facility were pioneered by the Tech Solutions program at the Office of Naval Research under the leadership of CDR Dylan Schmorrow.
Special Effects Small Arms Marking System (SESAMS), computer-generated avatars, and other technologies combine with real sets and objects.