From the Enhanced Edition Official Rulebook
During the Civil War, the Ironclad project produced the USS Monitor, a heavily armored ship that took part in a decisive naval battle against the CSS Virginia. Less than a century later, the ongoing Ironclad project produced another success: the Personal Armament Exo-Chassis YS-1200. The suit allowed one soldier to do the work of an entire squad and operated in an elite battalion during World War II. 50 years later, a new armored suit was developed: the Personal Armament Exo-Chassis YS-1300T. When the government began its Freedom Five initiative, Lt. Tyler Vance was selected to operate the Bunker suit for the first time as part of a non-army campaign. Thus, Bunker became the second member of the Freedom Five, joining Legacy in the fight against the villains who threatened the world.
From the Sentinels of the Multiverse Official Site
Tyler Vance spent the first 18 years of his life in the middle of a desert. Boulder City, Nevada was the town he called home, and his formative years were nothing short of, well, ordinary. He cut his teeth working as a mechanic in his father's dust-choked auto-shop, and he made extra cash repairing slot machines in local dive bars and diners. His limited spare time was filled with thoughts and dreams of getting out of that town. Most of his friends would probably never make it further than Vegas, but Tyler swore he would. As soon as he was old enough to join the Army, he headed to the nearest recruitment office and signed up.
However, fate has a cruel sense of humor. Tyler Vance left his home wanting to see the world at the same time as the United States went to war in the Middle East. Tyler's journey merely took him from one desert to another. Proving his mechanical aptitude early on, Tyler was quickly assigned to an armored division. Over the next few years, he rose through the ranks, and eventually he attained a position as a Lieutenant leading his own platoon.
During his eighth year of service, Lt. Vance was leading a mission through contested territory outside of Fallujah when his platoon was surrounded by a large enemy force. As they tried to gain a defensible position, a sandstorm caught them by surprise, damaging their communications equipment. Cornered with no way to radio for help, Vance managed to keep a cool head and guide his unit safely through the situation. The siege on his platoon lasted for 48 hours until the sandstorm subsided, enabling allied helicopters to locate them.
Despite the duration and complications of the siege, Vance's platoon was able to escape with zero friendly casualties and only three serious injuries. The Army brass referred to Lt. Vance's leadership in the situation as both "prodigious" and "exemplary", and the defensive positioning Vance had utilized was later added to the standard training regimen for all armored division personnel.
When Tyler arrived back in the States, he was awarded for his valor with the Army's Distinguished Service Cross. After the ceremony, he was approached by General Joshua Armstrong, who offered him a chance to further serve his country by participating in the Freedom Five Initiative. While operating outside the official Army chain of command, the position would provide Vance with a unique opportunity; he would operate the Personal Armament Exo-Chassis YS-1300T suit, an automated battle suit capable of wielding the firepower of a full battalion. Vance accepted General Armstrong's offer and became the first mechanized officer in the US Army. As the second member of the Freedom Five, Tyler "Bunker" Vance now acts as Legacy's right hand man and the strategic brains behind most of the Freedom Five's mission planning.
Variant: Originally revealed September 2013 after the Vengeance expansion was delayed.
Corporal Carter was a good soldier. He followed his orders and got work done. He was good with guns and tech, so he was given a lot of responsibilities. However, regardless of how hard he worked, he was never so much as in line for promotions beyond "Corporal". So, when he was approached by the Ironclad Project and offered a chance to work as a specialized "Mechanized Corporal", he figured it was the best chance he was going to get.
Mechanized Corporal Carter was the first operator of a "Bunker" suit in real combat situations. And he found his way into plenty of real combat situations! The suit went through many changes and revisions as it took damage, and Carter got better and better at pushing the capabilities of his armor to the limits. He could even go head to head with tanks, earning him the nickname "Panzer-Buster".
In an operation, working with Captain Paul "Legacy" Parsons, Carter was air-dropped into the center of the German "Adlerhorst" fortress. He was the diversion, and his stalwart attack on the complex under heavy fire allowed Legacy's team to get in, get the heavily guarded intel, and get out without sustaining any casualties. Legacy's objective was completed successfully - Carter was just getting started. He worked his way through the Führer's headquarters, forced to tear damaged pieces of his armor off in order to continue moving, as the broken parts would lock up. His progress, while heroic, was eventually halted by the sheer number of soldiers who stood in his way.
Mechanized Corporal Carter was awarded both the World War II Victory Medal and the Medal of Honor posthumously, and is considered to be the greatest soldier to ever work with the Ironclad Project.
Variant: Released during the holiday 2015 season for any purchase from the >G store.
Meanwhile, the heroes known as Bunker, Absolute Zero, and Unity are working to uncover the mystery behind the villain Chokepoint. How did she get so much power? And why was she locked up in a secret bunker in Fort Adamant? What is really going on here? Armed with some new tricks, the heroes have to get to the bottom of this, before it's too late...
When Lt. Tyler Vance was approached about Fort Adamant by the Freedom Five sidekick/intern Devra Caspit, he was surprised. Why would Unity be asking questions about his old Army base assignment? Turns out, that's where a more newly formed team of heroes had been training. Oddly, Bunker had not heard anything from the base, and now, he was unable to make contact with anyone there. Expressing his concerns to Unity and Absolute Zero, the three of them quickly decided to pay Fort Adamant a visit. There, they were handily defeated by a familiar and yet different foe, who now went by the name Chokepoint.
Regrouping at their headquarters, the three heroes developed new tech and tricks to take down this new threat. Vance and Caspit worked together to develop a new version of the Bunker suit, this one based on ceramic construction and avoiding metal components as much as possible. Chokepoint could communicate with metal on a level that made any metal a liability in combat against her. Wearing his fully modular and adaptive ceramic Bunker suit, Vance is ready to take on Chokepoint, with the help of his allies.
Freedom Five Bunker
Variant: Originally revealed during the OblivAeon Kickstarter as the $1 Million stretch reward.
The Freedom Five stand together against the onslaught of OblivAeon and its Scions. They were seemingly defeated early on in the OblivAeon conflict, but they reappeared in Megaopolis to bring the fight to OblivAeon itself.
Lt. Tyler Vance has been pulled in multiple directions lately. The U.S. Military was revealed to be capturing and training/reprogramming super-powered individuals AND stocking items of great power. Lt. Vance's duty to his superior officers was running in direct conflict with his duty to his team. But the arrival of OblivAeon made everything much clearer.
Ultimately, the petty squabbles of those seeking to gain power cannot win over the needs of the innocent, let alone the needs of all existence. Bunker knows his duty is to protect those who cannot protect themselves, so that is what he does. After all, he's a member of the Freedom Five.
Variant: Originally revealed during Shattered Timelines Kickstarter as the $40k stretch reward.
Alternate Future from main timeline; Iron Legacy Variant
Character is a hero version of the villain Fright Train
The future in which Iron Legacy ruled the planet brought out the worst in many, but the best in a few. After the death of his former commanding officer and rival, Stephen Graves became a defender of the people. He protected a small neighborhood of people from roving gangs, and word of his valor reached Tachyon. She recovered an experimental Bunker suit that was barely functional, and retrofitted it to work as armor for the massive combatant formerly known as Fright Train. He agreed to work with this newly formed team, knowing that his actions could mean the difference between life and death for countless defenseless people.
Sentinel Tactics: Flame of Freedom Bunker
This information is from the Miststorm Universe, one of two branching timelines. Products in this timeline are: Sentinel Tactics (and expansions). Prime War (and expansions)
Dr. Stinson and former-Lt. Vance worked together to build a new Bunker suit - this one no longer benefiting from military R&D and ordnance, but still something that would allow Tyler Vance to bring his tactical genius to bear on the battlefield. And, of course, it would also provide an impressive amount of firepower. Though still a massive metal suit, this new Bunker was smaller and more efficient than previous versions and could be launched considerable distances from Freedom Tower.