Datalink Wingman command behaves incorrectly.

After I asked this question in Rookie thread, I did some more testing and concluded this has to be a bug. Please correct me if I'm wrong. I tested these in Instant Action Shooting Range and I did select correct target type when saving and sending the targets.

There are the 4 commands in question.

• F1. Engage Datalink Target
  
• F2. Engage Datalink Targets
  
• F3. Engage Datalink Target by Type
  
• F4. Engage Datalink Targets by Type
  

Expected behavior

• F1. Engage single specific datalink target I sent him
  
• F2. If I sent him multiple datalink targets, he should only engage the ones I sent him.
  
• F3. Engage single specific datalink target by its type? I don't know how this is different than F1 but that's what it sounds like.
  
• F4. If I sent him single target for example a tank, he should only engage all tank targets.
  

Tested behavior

• F1. I sent him single T-55 and gave this order. And he engaged half of targets randomly between T-55, BMP's, and Strela.
  
• F2. I sent him one Strela and one truck and gave this order. And he engaged all armors (T-55's and BMP's) only.
  
• F3. I sent him single T-55 and gave this order. He engaged all T-55's only. Not just the one I sent him but all of them.
  
• F4. I sent him single T-55 and gave this order. He engaged all armors (T-55's and BMP's) only.
  

It seems to me F3 and F4 does somewhat of what it says altho I believe F3 should be F4. Or the command should be more clear that F3 is exact model and F4 is general type.

And I have no idea what F1 and F2 does and if it's a bug.