As always with the secret chests in Destiny 2, they only drop the loot you already got from the dungeon. So if you only have ...

Prevents all damage from bleeding if chest haemorrhages. Extra Padding Increases Armor Rating by 50, providing even more protection against damage. Med-Kit Increases stim inventory and total ...

Here's a list ranking all armor perks in Helldivers 2, from the most niche to those that are generally useful regardless of what mission players do.