Kimble Graves is from the East Flatbush section of
Brooklyn
,
New York
. By 2020, he has a family consisting of a wife and three kids. He went to George Westington House (GWH) High School in downtown Brooklyn. After graduating, he joined the United States Marine Corps, eventually being assigned to Tombstone Squad. When Clayton Pakowski joins Tombstone a year before the War of 2020, Graves has already gotten the nickname "Irish"; and treats Pac as the group's little brother.While on a frieghting mission to Freetown Port, Sierra Leone with 200 refugees on board, the Exodus is contacted by Oz, who orders Irish to reroute to the flooded city of London, England.[6] There, Irish enters the city alone to meet a contact with information critical to Oz. The contact is killed by an unknown shooter shortly after Irish locates him. Returning fire, Irish manages to wound the attacker and discovers that is his former Tombstone squadmate Clayton Pakowski. Recovering the contact's briefcase, Irish brings Pac back to Exodus as a prisoner to recieve medical care.

Oz then directs Irish to sail to a set of coordinates in the Mediterranean Sea, where three MV-38 Condors with Oz's men will pickup the briefcase. Nearing the site on October 20, 2042, Irish visits Pac in the medical bay, where he is still handcuffed to his bed. Pac accuses Irish of being a traitor for taking money from Oz for the job, but Irish states he is only conerned about the refugees aboard the ship, which now includes Pac. Pac warns that intel Oz wants will allow him to start another global war and that Irish can't give it to him, which Irish disregards and promptly leaves the med bay, saying he already knows what he's fighting for.

On the bridge of the Exodus, however, technical Specialist Navin Rao has accessed the contents of the briefcase against Irish's wishes, discovering that it contains intel regarding the future crash site of an American satalite weapon that will fall from orbit in 36 hours. Realizing that Pac was right and that Oz plans to hand over the intel to the Russians to force a war with the Americans, Irish decides he won't turn over the intel as the Condors begin approaching the Exodus. To evade them, Irish directs the ship into the heart of a nearby category 5 tropical storm.

The Condors give chase, with Oz having figured out Irish's betrayal. The gunships open fire on the Exodus, and as they enter the storm begin deploying troops onto the deck of the ship. Irish leaves the bridge with the briefcase to help his Task Force fight off the attackers. Two of the Condors collide with each other because of the storm winds and are destroyed, but the remaining Condor continues to fire on the Exodus. Retrieving a FXM-33 AA Missile missile dropped by a fallen Specialist, Irish attempts to shoot down the Condor but is chased off the top deck of the ship by gunfire.

Landing hard on the lower deck and momentarily stunned, Irish looks up to see one of Oz's soldiers holding Omar at gunpoint. Oz contacts Irish through his headpiece, expressing his disapointment and threatening to kill Omar if Irish does not hand over the intel. Irish slides the briefcase across the deck to the soldier, telling Oz that millions of No-Pats will die in the crossfire of his war. Oz justifies it as the price for a new world, and the soldier prepares to kill Omar. Before he can pull the trigger, Pac shoots the soldier from the top deck, saving Omar but exposing himself to the Condor, which fires at Pac and kills him. Hiding Omar behind a shipping container, Irish grabs the fallen FXM-33 and destroys the Condor.

Later, Irish locates Pac's body and takes his dogtags, saddened by his friend's death. Irish discovers that the soldier Pac shot managed to send the intel to Oz before he died. Oz contacts Irish one last time, telling him that history will remember this, with Irish stating that he will too before tossing his earpiece away. Irish directs the Exodus to head for the coordinates of the crashsite in Doha, Qatar, and puts out a call to any listening No-Pats to be there in 36 hours and be ready to fight.[7]

Enroute to Doha, Irish would explain to the No-Pat journalist Kayvan Bechir, who had previously freed Pac from the medical bay, why he had turned on Oz, believing Oz's war would destroy the No-Pats along with the Americans and Russians.A natural-born leader, Kimble "Irish" Graves, is the commander of the Specialists aboard the Exodus. A native of Brooklyn, New York, his natural leadership qualities and combat skills help keep the Non-Patriated safe from harm. Having seen the cost of war first hand as a former Marine, this skilled engineer is dedicated to protecting both his squad as well as those who cannot fight for themselves. Irish excels at fortifying positions on the battlefield, and creating small outposts with which others can use as a rallying point to make an attack.