Experience that Shapes Better Outcomes

Our team applies proven operational judgment, disciplined leadership, and modern technical insight to help organizations strengthen their people and their preparedness.


We focus on delivering clarity, professionalism, and measurable value in every engagement.

Our Team

Jongin Pat Choi

An 18-year Army veteran, served as a Sniper and Reconnaissance Platoon Sergeant across Iraq, Afghanistan, and Africa. His expertise in high-stakes security includes Presidential Protection for the 2020 Inauguration and his ongoing services as an investigator for the Gwinnett County Sheriff’s Office. His seasoned perspective ensures absolute compliance and impenetrable protection across every facet of the operation.

Founder / CEO

Ashton McFarlin

Marketing Director

Ashton drives Sierra7’s marketing vision, blending creativity with technical expertise to shape the company’s brand and digital presence. His background in IT, web development, and Army reconnaissance informs his disciplined approach to communication, strategic planning, and organizational messaging. Ashton’s work ensures Sierra7’s identity remains modern, credible, and aligned with the company’s mission to prepare and protect communities through clear, effective, and trustworthy communication.

John McGhee

A veteran of the Dekalb County Police Department with a career-long commitment to the service of others. A highly certified security expert, he has extensive experience managing large scale operations at major venues, ensuring the safety and security of more than 1,000 individuals per event. His leadership ensures that even the most demanding environments remain secure.

Security Director

Christian Skaggs

A seasoned SRT operator and POST-certified instructor with a background in high-risk fugitive recovery for the Gwinnett County Sheriff’s Office. Having spearheaded the apprehension of some of the state’s most dangerous criminals, he now serves as an elite trainer for law enforcement and SWAT units. His deep tactical knowledge ensures that all security operations are handled with veteran-level precision.

Training Director

Leadership that Drives Results

Our philosophy centers on purposeful action, transparent expectations, and a standard of excellence that strengthens every partnership. We focus on delivering outcomes that matter to the organizations we serve.