Rim2RimStories

Rim-to-Rim in One Day

Grand Canyon Rim to Rim at Night

Meet the Founders

Hi-Line Tactical was built on a shared mission: to make tactical fitness practical, effective, and field-proven. At the helm are two people who live what they teach Bravo Delta (BD) and Little M. each bringing a lifetime of experience pushing themselves and others beyond their perceived limits.

BD is the driving force behind the planning, logistics, and no-excuses attitude that define Hi-Line. A former member of the Maritime Special Purpose Unit in the United States Marine Corps, he brings first hand expertise in CQB training under the most demanding conditions, like fighting in the tight, shifting confines of ships at sea. Long before sport-specific training was mainstream, he pioneered rock climbing programs that helped athletes build strength and precision on vertical terrain.

His athletic background spans competitive swimming, endurance cycling, distance running, and offshore sailing, reflecting a commitment to mastering every element of fitness. Beyond physical training, BD specializes in meticulous data gathering and performance recording, ensuring every rep and every mile serves a purpose. He’s the voice reminding everyone that discipline and preparation are non-negotiable and he proves it every day by leading from the front.

Little M. brings her experience in precision shooting, backcountry and real-world endurance feats to Hi-Line Tactical. In her free time, she pushes precision shooting beyond what most cartridges and rifles were ever designed for, often outperforming her equipment in what the team calls ULR—ultra long range. A dedicated athlete for nearly four decades, she relentlessly pursues new challenges, constantly redefining her own limits.

Her adventures include ultra-long thru-hikes like the Te Araroa Trail in New Zealand, and she thrives in every environment: from mountains and forests to deserts, arctic terrains, and open oceans. Now, she’s adding the sky to her repertoire, learning to pilot multiple types of aircraft. Beyond her tactical skills, Little M. is also an accomplished artist, bringing creativity and a sharp eye for detail to everything she does. Her approach blends old-school grit with modern performance science, and she never hesitates to prove herself before asking others to do the same.

Together, BD and Little M. don’t just write about tactical fitness; they live it. Their next test is going to be a challenge that embodies everything they believe in.

The Hike Challenge: Rim-to-Rim in a Single Push

This October, the founders of Hi-Line Tactical will take on one of the most iconic endurance hikes in the country: crossing the Grand Canyon from the North Rim to the South Rim in a single overnight push. Their route begins at the North Kaibab Trailhead, descending roughly 14 miles to Phantom Ranch at the bottom of the canyon, then continues another 9.5 miles up the Bright Angel Trail to finish at the South Rim. Over the course of 24 miles, they’ll drop nearly 5,800 feet and climb back 4,300 feet, moving continuously through the night.

“We know that the best way to test ourselves is in extreme conditions,” which is the heart of Hi-Line’s philosophy and what is being explored in the upcoming book “Fit to Fire” to be released later this year. This hike serves as a proof of concept for the book’s training program, designed to build the strength, endurance, and mindset required for challenges like this.

As of the first week in July, BD and Little M. are finishing week 4 of their 16 week cycle, ramping up mileage and elevation gains while integrating the same tactical fitness principles they teach.

October offers ideal conditions for the Grand Canyon: cooler nights, fewer crowds, and reliable water at key points like Manzanita, Phantom Ranch, Indian Garden, and the 3-Mile and 1.5-Mile Rest houses. But even with favorable weather, preparation is critical. Every detail: gear, nutrition, route strategies, and safety plans has been meticulously planned, supported by a volunteer crew to ensure they can move fast, stay safe, and handle whatever the canyon and the night throw at them.

This challenge is about proving that readiness is earned, not given and that Fit to Fire isn’t theory. It’s a system forged and tested in the field.

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