Rourke

Rourke is the leader of Trinity's military forces and the adviser of Pedro Dominguez.

He is the secondary antagonist in Shadow of the Tomb Raider.

Early Life
Rourke was a highly decorated U.S. Special Forces soldier, prior to his recruitment by Trinity. He rose through the ranks of Trinity becoming the leader of their military forces, only answering to the High Council. He didn't always agree with the orders of Pedro Dominguez, but a grudging sense of respect led him to follow them.

Rise of the Tomb Raider
Rourke was in contact with Konstantin during the search for the Divine Source, warning him of what would happen should he fail. Upon the destruction of the Divine Source, he ordered one of his men to assassinate Ana for her failure. Though on Dominguez's orders he was told not to kill Lara, he deeply regretted following this order.

Shadow of the Tomb Raider
Rourke traveled to Cozumel, Mexico along with Dr. Dominguez in order to retrieve to retrieve the Key of Chak Chel. Ordering his men via radio to keep an eye out for Lara. Upon finding Lara, he took the key of Chak Chel from her, leaving Lara alive on Dominguez's orders.

He later traveled to Peru with Dominguez and several battalions of Trinity's soldiers, becoming more and more enraged at Lara's continued success at slaughtering his men and thwarting Trinity's plans.

more to be added...

Trivia

 * Rourke's code name is Paladin One.