A Booby Trap is a device or setup that is intended to kill, harm or surprise a person, unknowingly triggered by the presence or actions of the victim. They often have some form of bait designed to lure the victim towards it but can escentially be placed anywhere. Lethal booby traps are often used in warfare, particularly in guerrilla warfare.
The Booby Trap is a gadget issued to the NVA Engineer kit. It normally appears as a pair of wirecutters, but will instead appear as TNT when attached to a vehicle. This TNT trap will trigger immediately upon entry of the vehicle, instantly killing the player, whether they be an enemy or a teammate.
— In-Game Description
Sabotage a featured gadget in Battlefield Hardline. It can be planted on vehicles, interaction points such as doors, switches, Battle Pickups, first aid boxes and Defibrillator kits on walls, and ammo lockers. Objectives such as money bags or cache may also be sabotaged. The gadget will detonate when an enemy interacts with any of these objects. It is worth noting that for Sabotage to detonate in vehicles, enemies must drive the vehicle forward in order to trigger it. Simply sitting in the vehicle without moving will not detonate it.
Sabotage can largely be identified by a blinking red light under vehicles or on walls. It can only be disarmed by a Repair Tool or by shooting it with a weapon. Be cautious when detonating with a weapon, as it will create a large explosion capable of killing the player. The explosion, however, will not count as a kill but will instead be listed as a suicide with the weapon that was used to detonate the Sabotage.