Firefight side story idea

I thought it would be neat to have a story to entice people to play firefight more.
Basically my idea is to have an ongoing story of survival against whatever the enemy in the new trilogy is. Give these new spartans or other types of characters names and personalities that way we would care more about playing them and it would keep firefight interesting with each “new adventure” every time there is a new dlc released. thoughts?

I like the idea. But I don’t think a deep story is needed neither. Anyway, motivation is what’s left to firefight, something better than “Go, defend this, Spartan”. IMO.