Please note that these rules assume that the PCs will be loose-cannon police officers of the Lethal Weapon mold (or possibly Renegade ex-cops of the Renegade mold).
Cop Killer Bullets
Teflon coating lubricates the bullet's point of impact allowing it to pierce any armor, no matter how strong, with ease. In game terms, Cop Killer bullets negate all of the target's armor.
Cop Killer bullets are not available to the police or the military, due to local laws and international treaties restricting their use. Major gun manufacturers, however, commonly market them to street gangs and they are easy to obtain on the black market (Availability 3, 100

Everything Explodes
Whenever something mechanical or electronic is destroyed, it explodes, without exception. The power and size of the explosion depends on the size of the object and dramatic necessity.
Gas Tank Called Shots
Any character can make a called shot to a vehicle or drone's fuel tank, even if it does not have an exposed fuel tank. A successful hit will instantly destroy the vehicle or drone, causing it to explode.
Kicking the Gun Out of the Hand
Anyone with the Unarmed Combat skill at any level can spend an action to kick the gun out of an enemy's hand. This action always succeeds.
Conservation of Ninjutsu
Friends in Melee penalties are reversed. You get bonuses for being outnumbered and suffer penalties for having a numerical advantage.
Luckily, X broke my fall
Landing on any object other than the ground, no matter how hard it is, will reduce falling damage to 1 box.