The Wounded Warrior Battalion, with Marine Corps Installations - West, Camp Pendleton, California, hosted guest speaker Herschel Walker, a Heisman Trophy winner and advocate for mental health issues Nov. 3, 2017. Walker, a native of Wrightsville, Georgia, began his career playing college football and was later diagnosed with dissociative identity disorder. - The Wounded Warrior Battalion, with Marine Corps Installations - West, Camp Pendleton, California, hosted guest speaker Herschel Walker, a Heisman Trophy winner and advocate for mental health issues Nov. 3, 2017. Walker, a native of Wrightsville, Georgia, began his career playing college football and was later diagnosed with dissociative identity disorder.