No, this was the first time that has happened.
Decent enough episode. I'm pretty intrigued by whatever happened to Red, Doctor Sun, and the rest, and Addy back on a mission makes me smile. Plus the final image of her trudging along nicely mirrors that of a zombie.
I must say that the editing was a complete mess though. When they finally decided to kill their comrade who is bleeding out it takes way, way to long because of all the back and forth cutting.