Centerline Tactical
Ground Zero | Centerline Tactical
Tactical Ground Survival System

You're On Your Back. He's On Top Of You. Raining Down Punches.
Concrete Under Your Skull.

What a BJJ black belt and a special forces operator discovered about surviving the ground... when the ground isn't a mat.

Ground fighting on concrete
Learn The System

Every Fight Is One Stumble Away From The Ground

You don't choose it. You don't plan for it. It just happens.

You get shoved. You trip over a curb. Your foot slips on wet pavement. And now you're down there... on concrete, on gravel, on glass... with someone on top of you who wants to hurt you.

Here's what the self-defense industry won't tell you:

Most "ground fighting" training will get you killed on the street.

They teach you to "pull guard." To work from your back. To wrap your legs around a guy and hunt for submissions like you're rolling in a nice, clean gym.

But you're not in a gym. You're in a parking lot. A bar. A sidewalk outside a gas station at 11 PM. And the ground isn't padded.

Rough concrete surface

Andrew MacDonald

3rd Degree BJJ Black Belt • 25+ Years • World Champion

"This is not the ideal place to end up on the ground. There could be needles, sharp objects, rocks. All it takes is falling backwards, hitting your head on one of these objects, and you could be dead. It's as simple as that."

That's a world champion grappler telling you the ground is where people die.

Why BJJ Alone Won't Save You

No Mats

Your back is on concrete. Your elbows grind into asphalt. One bad fall and your skull cracks on a curb.

No Rules

While you're hunting for an armbar, his buddy is kicking you in the head. Or he's reaching for a knife.

No Time Limits

After 30 seconds of all-out ground fighting, most people are completely gassed.

No Referee

Nobody is going to stop the fight. Nobody taps. Nobody resets.

"There's a big misconception with jiu-jitsu people and grapplers that in a street self-defense situation, the jiu-jitsu is going to save them."

- Andrew MacDonald, 3rd Degree BJJ Black Belt

The question isn't whether you'll end up on the ground. The question is whether you'll know what to do when you get there.

Learn What Actually Works

Two Worlds. One System.

Adam Seegmiller

Adam Seegmiller

Special Forces Operator

Law enforcement. SWAT. Close protection across hostile nations. Selection into a Tier 1 special operations unit.

Five cumulative years in combat zones. Hundreds of real fights. Trained with top-level UFC champions.

Adam doesn't teach theory. He teaches what he and his peers used when lives were on the line.

Andrew MacDonald

Andrew MacDonald

World Champion BJJ Black Belt

Third-degree black belt in BJJ. Over 25 years of training. Multiple International Championship Titles.

But what makes Andrew different is what he'll tell you other BJJ instructors won't:

"The jiu-jitsu is only a mechanism for if the person comes towards me... to navigate through a standup situation where I can make space, push off, and find my exit route."

Never before has anyone brought together special operations military tactics with world-class Brazilian jiu-jitsu... stripped away everything that doesn't work on concrete... and built a ground survival system specifically for the street.

That's Ground Zero.

Built On One Principle That Changes Everything

Centerline Dominance

It's biomechanics, not brute strength. Step off someone's center line and their body weakens. Yours strengthens. Just one step.

Ground dominance

Gross Motor Skills Only

No complicated guard passes. Under extreme stress, fine motor skills collapse. Everything here works when your hands are shaking.

Learn In Days, Not Years

Built for operators who needed ground skills fast with zero martial arts background. If it works for them, it works for you.

Designed For Hard Surfaces

Every technique assumes concrete, asphalt, or worse. No pulling guard. No inversions. Just dominant positions and brutal escapes.

Escalating Force

Every technique has levels. Control without excessive violence. Escalate only as the threat demands.

Get The Complete System

30 Video Modules

Every ground scenario you could face. Covered.

Foundation & Mindset

The combat mindset, Centerline concept, and the framework from military special operations combatives programs.

Street Escapes

Wrist grabs, chokes from behind, standing control. Real scenarios. Biomechanical escapes that work regardless of size.

Tactical Grappling

Standing grappling with Centerline dominance. Use their momentum. Control the clinch without going down.

Ground Dominance

Mount, side control, knee on belly, knee on face... maximum control with minimum energy.

Ground Escapes

Table leg escape, bridge and roll, hip escapes against bigger attackers... designed for concrete, not mats.

Combat Finishes

Standing rear choke. Forearm jaw crush. Darce. Kimura. Americana. Guillotine. Special operations finishes.

Integrated Defense

Takedown defense. Punch-to-guillotine. Standing up under attack. Where striking meets grappling in chaos.

Is Ground Zero For You?

This Is For You If:

  • ✓You own HAVOC and want the complete system... standing AND ground
  • ✓You train BJJ but wonder if it'll actually work outside the gym
  • ✓You're smaller or older and need techniques that don't rely on strength
  • ✓You carry a weapon but know there are situations where you can't draw
  • ✓You want a complete ground system you can learn in days, not years

This Is NOT For You If:

  • ✗You want to compete in BJJ tournaments
  • ✗You think street fights always stay standing
  • ✗You're not willing to practice what you learn

Why Most People Freeze On The Ground

Ground escape

When you're on the ground with someone on top of you, everything accelerates. Heart rate spikes. Fine motor skills vanish. Adrenaline hits so hard your hands literally shake.

They Freeze

Complete shutdown. Fetal position. Cover their head and hope it stops.

They Flail

Wild, panicked movements that waste every ounce of energy in 15 seconds.

Ground Zero teaches you a third option:

Controlled aggression with a plan.

That psychological advantage... knowing you have a system... is worth more than any single technique.

In Adam's Words

"This program came from a development program for a military unit. We wanted to develop a program for guys that don't have a high level of self-defense skills, but find themselves in situations where they need it."

"Because firearms are not always an option."

"We had to find things that were overwhelming to the enemy, that were easy to manufacture and recreate under stress."

"It's a bare bones, down and dirty, gross motor skill, street fighting, self-defense program. That's what it is."

Adam in tactical gear

What People Are Saying

Real reviews from verified customers

★★★★★

"I am a BJJ student and love it. But it takes a good while to become proficient at BJJ. The simple, gross motor methods taught here were easily learned and upped my confidence for real-life violence greatly in a short period of time."

Joel L.

BJJ Practitioner • 25+ Years Combatives

★★★★★

"As an emerging self-defense school, this was informative as to what special forces would deem as essential. I have been doing martial arts 16 years and have seen all the content, but it has given myself a more focused direction."

Alonzo F.

Self-Defense School Owner • 16 Years Martial Arts

★★★★★

"As a disabled vet, this could really come in handy. I could never go toe to toe with anyone in a long fight, but if I can end it quick, I could still be effective enough to do what needs to be done."

Roger H.

Disabled Veteran

★★★★★

"A very worthwhile course. It prepares you for tackling bad stuff and really makes you think! As a martial artist of 19 years training, I can highly recommend it!"

Tim H.

Sensei • 19 Years Martial Arts

★★★★★

"I am very excited by your simple, effective, direct approach, and as a practising hypnotist I'm especially pleased to see you cover psychology and the mental dimensions."

Ms. A.G.

Martial Artist • Military Family

★★★★★

"Great product. I'm a retired Command Sergeant Major and spent 15 years with Tampa PD teaching defense tactics before going back on active duty to finish my 34-year career."

Mike

Retired CSM • 15 Years Tampa PD

Ground Zero: Tactical Ground Survival System

30 Video Training Modules by a Special Forces Operator & World Champion BJJ Black Belt

Ground Zero Course
  • ✓30 HD video modules... watch on any device, forever
  • ✓Street escapes (wrist grabs, chokes, standing control)
  • ✓Complete ground dominance system (mount, side control, knee on belly)
  • ✓Ground escape techniques for concrete, not just mats
  • ✓7 combat finishes from military special operations
  • ✓Integrated defense (takedown defense, punch-to-submission)
  • ✓Mindset and psychology from actual combat experience
  • ✓Lifetime access... train at your pace, revisit anytime

If you bought HAVOC, this is the other half of the equation.

HAVOC keeps you on your feet. Ground Zero handles everything that happens when you can't stay there.

$97

Less than a single month at most BJJ gyms

Get Ground Zero Now... $97

Instant digital access. Start training today.

Every Day You Wait, You're Rolling The Dice

If it happens... and it goes to the ground... will you know what to do?

$97. Thirty modules. Lifetime access.

A special forces operator and a world champion black belt handing you everything they know about surviving the ground.

Get Ground Zero Now

Frequently Asked Questions

The Ground Is Coming. Be Ready.

You can't always choose to stay on your feet. But you can choose to be dangerous when you're down there.

Get Ground Zero Now... $97