As my Storyline goes on (I know, I need to get off my keister and finish my latest dio!) I had that issue. If no one dies, it's unrealistic. If you bring them back in some hokey way, it's unrealistic. If you let them die off, you're stuck with figures you can't use. What to do...what to do....

I figured it out. I keep their slot (known as a "billet" in the military) open. There is a Flash in My Joe stories. He's NOT Anthony Gambello. There is a MainFrame, but he's NOT Blaine Parker. When someone on the roster dies, they fill his slot and codename with a new person.

It's a little harder for Cobra. But they did switch out Fred and Cobra Commander for the longets of time!