Mark Armstrong has joined the Beaumont, Texas ABC and NBC affiliate KBMT as morning co-anchor. Armstrong last served as chief communications officer for Baton Rouge and East Baton Rouge Parish, where he led strategic communications on public safety and infrastructure projects. “I’m thrilled to join the Daybreak team and become part of the Southeast Texas community,” said Armstrong. “Morning news is a chance to set the tone for the day, and I look forward to bringing viewers stories that matter most to them. This region’s rich culture and resilience inspire me, and I can’t…