How do I subdue someone?

Question

I saw footage of someone being arrested by the police. How do I subdue or arrest an enemy? Can only the police team do this?

Answer 1

1. You need a blunt weapon (anyone can do it)

2. Hit the enemy from behind (with the blunt weapon) - F default key

3. Profit - Interrogate him (press E on the downed enemy - it will show all of them on the minimap)

Source and list of Blunt Weapons - http://battlefield.wikia.com/wiki/Blunt_Weapon

Video performing some takedown/interrogation -

(pt-br but you can see the HUD with the buttons)

Answer 2

It seem that police team can only do this.

You do it like a melee kill in other Battlefield game, if you haven't change your key configuration with the "F".

Maybe you should hit him twice (not sure).