Found that if you downgrade from 1.63 to 1.62 this fixes the respawn bug, at least it did for me. Take a look, http://steamcommunity.com/app/33930/discussions/1/46476144894970338/
I have the same problem. When I die in any of the Warfare (CTI) missions on multiplayer I can't respawn and have to restart the mission. All that happens is the camera zooms out for a top down view of my characters body. If i press Esc and click on respawn the camera then goes to to the friendly HQ with the same top down view and my character appears and dies instantly.