He should sound like an old, slightly bitter general who only cares about his men. As such, we're looking for someone with a deeper voice, but if you think you have another voice that could work, feel free to go for it. 

Daniel Foster, the head of security for quadrant five of the Wasteland salvage operation. A veteran of the Federation War, and the oldest member of the security team. While most involved in the war harbor deep seeded hatred for the Federation, Daniel does not. Over time, Daniel grew more and more apathetic to the war effort. Death after Death, losing those close to him over and over again, it all placed a huge burden on his heart. Now he serves as another cog in the machine, taking command of whatever operation command assigns him.