Halo 5 firefight survival

What happens if you defeat firefight with out dieing , do you get some sort of bonus or reward? As I just had a game where I didn’t die in the 1st 4 rounds and the 5th round was a dnf

Nothing sorry no bonus for surviving a whole WZFF match or round besides having 5 stars on your survival on each round for not dying on each round on your carnage report.

Tough break man, but I have to say, I have no idea.