Life Saver

The first time teamates die, an item appears on the ground, you can interact with the item to revive the teamate. A revival animation plays and then the teamate returns to life with 30% health. When the item is created, a countdown starts and if the player is not revived before the countdown ends then they can no longer be revived.

Enemies can interact with the items to "execute" the downed player to prevent them from being revived.