Tre Martin BRC Dunker Training (Early 2023)¶
Overview¶
In early 2023, Tre Martin underwent helicopter underwater egress training (commonly called "the dunker") as part of his Basic Reconnaissance Course (BRC) training. The evolution—which requires Marines to escape from a simulated helicopter crash while strapped in, underwater, and disoriented—tested Tre's ability to function under extreme stress while adding new layers to his accumulating trauma. The training itself was completed successfully, with Tre earning praise from instructors for his textbook execution. However, the weeks of sleep deprivation and psychological strain left him so depleted that he slept for approximately seventeen hours straight upon returning home to Baltimore, frightening his family with the depth of his unconsciousness.
Background and Context¶
By early 2023, Tre Martin was 21 years old and had already served in Afghanistan (2021-2022), experiencing significant combat and moral injury. Following his deployment, he pursued Basic Reconnaissance Course training to become a Recon-qualified Marine—an elite designation requiring exceptional physical fitness, tactical proficiency, and mental toughness.
The dunker training is a standard component of BRC, designed to prepare Marines for helicopter crashes over water. The Shallow Water Egress Trainer (SWET) simulates the disorientation and panic of being trapped in a sinking, rotating helicopter while strapped in and underwater. For someone like Tre—6'5" and 270 pounds—the training presented unique challenges due to the confined spaces not designed for his size.
Tre arrived at this training already carrying unprocessed trauma from the 2019 police violence incident and his Afghanistan deployment. His coping mechanisms included dissociation and compartmentalization—the ability to "power off" and function while the parts of him that felt fear and pain got locked away somewhere deep and quiet.
Timeline of Events¶
Pre-Dunker Briefing¶
The briefing room smelled like chlorine and fear-sweat. Staff Sergeant Martinez explained the procedures to the BRC class: the trainer would drop into the pool, flip upside down, and the Marines would need to escape while underwater and disoriented. The four-step sequence was simple in theory—brace for impact, orient yourself, release restraints, find your exit and execute.
Tre sat in the back row, shoulders taking up space meant for two Marines, watching his classmates' nervous energy. He'd been trapped before—in that building collapse in Helmand when he was pinned under a beam for six minutes—and he'd learned that panic killed you faster than shrapnel.
The Strapping In¶
The SWET trainer looked bigger up close—a metal cage suspended fifteen feet above the deep end. Tre was assigned seat two, between Rodriguez and Patterson. The harness was tight, the restraints designed to pin him completely to the seat. His hands could move freely for the escape procedures, but otherwise he was locked down.
The sensation triggered buried memories: the weight of tactical gear in Helmand, the pressure of body armor during building clearances. Tre shut that down hard and focused on the present.
The Drop and Underwater Sequence¶
When the cage hit the water, the impact drove the air from Tre's lungs. The flip happened faster than the briefing videos suggested—one second he was looking up at fractured sunlight, the next the world had inverted and he was hanging upside down from his straps, water rushing in with the sound of a dam breaking.
His body wanted to panic. Every survival instinct screamed that this was wrong, that he was trapped, that he was going to die. But panic was a luxury Recon Marines couldn't afford.
Tre forced his mind to narrow, shutting down everything except the four-step sequence. His fingers moved to the buckle releases with mechanical precision—muscle memory taking over while his higher brain functions dealt with the horror of drowning in slow motion. Chest straps, waist belt, foot restraints. Each click carried through the water.
Then he was floating free inside the cage, and the urge to shoot toward the surface was overwhelming. But that was step-four thinking, and he was still on step three. Check your gear. Make sure you're clear.
The cage opening looked impossibly small from inside. Tre's size worked against him here—270 pounds of muscle didn't float worth a damn, and the opening that would be easy for smaller Marines became a tight squeeze for someone built like a defensive lineman. For one horrible second he was stuck, wedged in the opening with his chest compressed and his lungs screaming for air.
But Tre had been stuck before. In Helmand when the ceiling came down. He'd learned that struggling made everything worse. He relaxed his shoulders, exhaled what little air remained to compress his chest, and slithered through the opening.
Then he was free, kicking hard toward the surface, the pool bottom falling away beneath him. Black spots danced at the edges of his vision. His body wanted to gasp. The surface broke over his head like salvation.
Instructor Praise¶
"Outstanding work, Martin," Staff Sergeant Martinez said afterward. "Textbook execution under pressure. Fastest egress time in your iteration."
Tre accepted the praise with quiet professionalism. The words felt like they were happening to someone else—some other Marine who hadn't just spent ninety seconds convinced he was going to die.
The Night After¶
Most of the BRC class slept deeply that night, their bodies claiming rest after eighteen hours of evolutions. Tre lay in his bunk staring at the ceiling, still fully dressed except for his boots. His body was exhausted—that bone-deep fatigue that made bones feel hollow—but his mind kept replaying every second of the underwater sequence.
The sensation of harness straps cutting into his chest. The sound of water rushing in. The moment when the world flipped. The pressure as his body screamed for air.
He checked his watch: 2147. Five and a half hours until reveille if he could fall asleep right now. He couldn't.
Marching While Sleeping¶
The following days brought a new phenomenon: Tre's body learned to operate on autopilot while his mind went somewhere else entirely. During administrative marches between evolutions, his legs moved without input from his brain, muscle memory carrying him at exactly the right pace while the rest of him was offline.
Rodriguez was talking to Patterson about liberty plans. Instructors barked corrections. All of it happened at a distance, like someone else's conversation in another room. Tre's eyes remained open and focused on the horizon, but what he was actually seeing was the inside of his squad bay bunk at 0347 that morning—the fourth time he'd checked his watch.
He'd gotten maybe three hours total. But Marines didn't get to be tired during training evolutions. They got to be tired later.
The Uber Ride¶
When training finally ended, Tre caught an Uber to San Diego International Airport. The driver, Miguel Rodriguez, recognized the military bearing immediately: civilian clothes that hung wrong, black backpack squared away, posture that screamed discipline.
Tre answered questions politely—"Yes, sir. Baltimore." "Thank you for asking."—and then, about ten minutes into the ride, he was out cold. Not sleeping—out cold. Head tilted back, mouth slightly open, breathing so deep and slow it looked like he was in a coma.
Miguel checked the rearview mirror repeatedly, worried by how still his passenger was. The Marine didn't move when Miguel hit the brakes, when an ambulance went by with full sirens, when they hit construction and jackhammers filled the air. He'd been running on fumes and pure willpower, and the second he sat down in a moving vehicle heading toward home, his system had just quit.
When they arrived at the airport, Miguel had to call out multiple times before Tre's eyes opened—immediately alert, the way military people did, but with confusion visible before training kicked in.
Moving Through the Terminal¶
San Diego International was busy. Tre walked through on autopilot, accepting the thanks of civilians who recognized military bearing:
"Thank you for your service, Marine."
"Semper Fi. Vietnam, '68 to '70."
TSA agents who'd seen him before noted how tired he looked. "You look tired, honey. When's the last time you slept?" Agent Stevens asked. "I'll sleep on the plane," Tre said.
At Starbucks, a young woman about his age insisted on paying for his coffee. Her brother was Navy, she said. She wanted to say thank you. Tre accepted the gesture, thanked her, and asked her to thank her brother for his service.
The 17-Hour Sleep¶
Tre made it home to Baltimore Friday evening. His family—mother Angie, father Isaiah, and twelve-year-old sister Tiffany—welcomed him back. They settled on the couch together to watch a movie.
Within twenty minutes, Tre was unconscious. Not sleeping—unconscious. His head had fallen back against the couch cushion, mouth slightly open, breathing so deep and slow it looked medical. His whole body had gone limp. He didn't react when a car backfired outside. Didn't respond to his name.
Tiffany was the first to notice. "Mama, something's wrong with Tre."
Angie's nurse training kicked in: pulse, breathing, chest rise and fall. "His vitals are fine. He's just... exhausted. Like, really exhausted."
The family maintained a quiet vigil for hours, taking turns checking on him while watching TV with the volume lowered. When they went to bed around eleven, they left him on the couch with a blanket tucked around his shoulders.
He slept for approximately seventeen hours straight. When he finally woke—around 2 PM Saturday—he was completely disoriented. "What time is it?" "Two in the afternoon, honey. Saturday afternoon."
"Saturday? I thought... wasn't it Thursday?"
Angie confronted him directly: "When's the last time you actually slept? And I mean really slept, not that military cat-nap stuff."
"I don't know. Before training started, maybe?"
"That was three weeks ago."
Participants and Roles¶
Tre Martin: The Marine undergoing training, demonstrating exceptional performance despite carrying significant trauma and operating on minimal sleep.
Staff Sergeant Martinez: Lead instructor for the dunker evolution, praised Tre's performance as "textbook."
Rodriguez and Patterson: Fellow Marines in Tre's training iteration who shared the SWET experience.
Miguel Rodriguez (Uber driver): Civilian who transported Tre to the airport and witnessed the extreme depth of his exhaustion.
Angela "Angie" Martin: Tre's mother, a nurse who assessed his condition and confronted him about self-care.
Isaiah "Pops" Martin: Tre's father, who maintained quiet vigil while Tre slept.
Tiffany Martin: Tre's 12-year-old sister, who was frightened by the depth of his unconsciousness.
Immediate Outcome¶
Tre successfully completed the dunker training evolution and the broader BRC, continuing on his path to becoming a Reconnaissance-qualified Marine. His instructors saw a Marine who performed flawlessly under pressure.
His body, however, told a different story. The seventeen-hour unconscious sleep demonstrated the true toll of weeks of sleep deprivation, physical strain, and psychological stress. His family was forced to confront how much military service was costing their son.
Long-Term Consequences¶
The dunker training added another layer to Tre's trauma archive—filed away with the 2019 incident, Afghanistan, and everything else he'd learned to compartmentalize. The underwater sequence would later resurface when his respiratory system was compromised at Camp Pendleton in November 2026, when blast injuries to his lungs created a horrifying intersection with memories of being trapped underwater and unable to breathe.
The pattern of extreme exhaustion followed by profound unconscious recovery became more pronounced. Friends noticed Tre could "power off" with unusual rapidity when he felt safe, entering deep sleep states almost instantly.
Emotional or Symbolic Significance¶
The dunker training represents the particular demands military service places on the body and mind—the requirement to override every survival instinct and function methodically while your brain is screaming about death. For Tre, who had already learned to shut off fear since 2019, the training became another layer of protective armor mastered through sheer will and compartmentalization.
The seventeen-hour sleep symbolizes the unsustainable cost of this compartmentalization. Tre's body, unable to process what his mind kept locked away, simply shut down when safety allowed. The depth of his unconsciousness frightened his family because it revealed what the Marine Corps couldn't see: a young man burning through his reserves faster than he could replenish them.
Related Entries¶
Characters: - [Tre Martin – Biography] - [Angela Martin – Biography] - [Isaiah Martin – Biography] - [Tiffany Martin – Biography]
Settings: - [Martin Family Home] (TBD)
Groups: - [The Survivors – Collective Profile]
Related Events: - [November 2026 Camp Pendleton Incident – Event]
Revision History¶
Entry created February 3, 2026, from narrative content detailing Tre Martin's dunker training experience and subsequent return home.