Apprehending

The 2.0 Patch introduced a new game mechanic, which becomes available first during a mission at level 38. Battles involving these mechanics have an entirely new set of rules.


 * 1) Killing any non-vehicle unit will end the battle in defeat.  There are units designed to hold back damage to prevent killing the enemy:
 * 2) * Peace Keeper
 * 3) * Riot Truck
 * 4) Vehicles that accompany these rowdy troops can be destroyed without causing an instantaneous defeat.  Destroying all the enemy vehicles that are present will end the battle with a player victory.

Non-Lethal Force
The new non-lethal units are equipped with weapons that are designed to dish out damage while at the same time refraining from finishing off their targets. These weapons tend not to affect vehicles however.

Apprehending
The non-lethal units are equipped with a special weapon, indicated with a handcuff icon. While this attack can be used to drain HP from the target, bringing a non-vehicle enemy unit down to zero will "apprehend" that unit. A jaildoor closing animation appears over the affected unit, and then that unit is removed from the battlefield, rewarding SP and gold as usual.

Source:http://battlenations.com/forums/topic/new-feature-apprehend/