This is a possible concise summary:
The text is a transcript of a video by Armapedia, a channel that covers military history and stories. The video is about Dallas Alexander, a former Canadian special forces sniper who made the longest confirmed kill shot in history at 3,540 meters in Iraq in 2017. The video tells the story of Alexander's life, training, deployments, and the details of his legendary shot. It also reveals some of the challenges and controversies he faced after leaving the military and becoming a country music singer. The video ends with some exclusive questions that Alexander answered for Armapedia.
Here are the key facts extracted from the text:
1. Dallas Alexander is a former Canadian special forces sniper who made the longest confirmed kill distance shot in history at 3,540 meters in Iraq in 2017.
2. Dallas grew up in an indigenous community in Alberta, Canada, and joined the Canadian army in 2005 with the goal of becoming a member of the Joint Task Force 2 (JTF2).
3. Dallas underwent rigorous training as an assault operator and a sniper, including courses at Blackwater and Acurast in the United States.
4. Dallas served in Afghanistan and Iraq, where he supported the Iraqi resistance against the IS terror group and witnessed atrocities such as human trafficking and rape.
5. Dallas and his team used a prism device that allowed them to aim at targets beyond 2.5 kilometers, but they still had to make all the normal measurements and corrections of a sniper.
6. Dallas and another sniper, Scotty, fired simultaneously at an IS fighter who was wearing a bulletproof vest, but they don't know whose bullet hit him.
7. Dallas left the JTF2 in 2020 after refusing to take the vaccine and started a career as a country music singer.
8. Dallas revealed his story for the first time on a podcast with John Ryan, a former CIA operator, but the JTF2 ordered Ryan to remove the episode for revealing sensitive information.