Found this out a while ago
 
basically when the round ends revive your partner and it will give you extra health, I had it heal my partner to full health sometimes and the other time barely healing anything, the amount healed is really random
 
	
		
	
			
			basically when the round ends revive your partner and it will give you extra health, I had it heal my partner to full health sometimes and the other time barely healing anything, the amount healed is really random