I’ve tried using Persistent Perk several times, tested it in different scenarios, and it seems to be very broken offering zero benefit.
PERSISTENT: Can be downed 1 extra time before death
That’s the in-game description of what it does, my interpretation of that is a player who’s downed with that perk equipped has the ability to self-revive and get-up from being downed 1-time in a match.
However, nothing like that happens. There’s no button push to self-revive, the FT Member never automatically gets back up, and the FT Member downed still bleeds out if not revived by another FT member as normal.
There’s literally no benefit to his perk and it does not do what the description says it’s supposed to.