In Tom Clancy's The Division, Hornet has the ability to hack player turrets and turn them against the player. A strategy to defeating Hornet is by first killing all of his allies so you can be able to focus on him without being flanked. Keep him at distance so you can hit him with high-powered weapons, such as marksman rifles and seeker mines
Leroux is one of the first division agents to have gone rogue and follow Aaron Keener's leadership. Before joining The Division, he and Keener already knew each other in the army. After turning rogue, he is one of Keener's trusted associate that was well informed with Keener's plans unlike other rogue agents Keener worked with which he kept them in the dark most of the time.
Leroux and Keener were both got in touch with Division recruiter Elijah Lee, who signed them up for The Division due to their capabilities and experience.
Leroux was activated as a First Wave Division agent. After a short time of his activation, he turned rogue on The Division, and allied himself with rogue agent Aaron Keener. After Keener sought to ally himself with the Last Man Battalion, he followed him to do that as well.
After the Second Wave Division agents were activated, one agent was called upon to retrieve the Russian Virologist Vitaly Tchernenko in the Russian Embassy in Midtown Manhattan due to his knowledge on the Green Poison as he had worked with Gordon Amherst. Keener called upon the help of Leroux to secure Tchernenko due to Tchernenko will be valuable to his plans, as well as prevent the Division from extracting any valuable data from the consulate. Leroux arrived at the consulate, and found Tchernenko locked up in a safe room and The Division are on site trying to grab information from the data center. Leroux then disrupted the agent's SHD tech and rerouted all extracted data to his smartwatch.
Leroux then used a breaching charge to blow open the wall from behind the safe room and grabbed Tchernenko for extraction. The second wave agent followed Leroux and Tchernenko to the outside but was too late to retrieve Tchernenko. Leroux asked Keener for the permission to engage the agent in order to stall time and eliminate the agent, but was heavily injured by the agent. The agent left the embassy as Tchernenko is gone and thought that Hornet is dead, but before doing so the agent grabbed the data Leroux stole from the data center in the consulate for Jessica Kendel for further study on a cure on the Green Poison.
However, it appears that Leroux wasn't killed after he was defeated during the Russian Consulate mission, but was revived by another rogue agent. He makes a recovery and continue to work with Keener. During Keener's attack on Lower Manhattan, Keener gave Leroux some of the Eclipse virus that Tchernenko has been working on and tasked him to go to Washington, D.C. to recruit members for his cause. Leroux suggested the Outcasts since they are currently leaderless and in need of a purpose. Leroux then set out for D.C. to recruit the Outcasts along with four other rogue agents, consists of Termite, Titan, Luna and Huntsman.