@lyntonjmoore Good catch on the ping thing, it's gone for me now too, I just didn't notice since I've been focused on Gun Run. We'll make sure that's tracked.
As for the Level 4 shield, that was actually a change made a little while back, at the start of the season. The self-revive was removed and the Guardian Angel (health and shield on revive) perk was added.
Knockdown Shield Gold Perk
- New Perk: Guardian Angel (Previous Backpack Perk).
- Self Revive removed from the game.