The Throwing Knife is a silent throwable that kills most soldiers in one direct hit. It is a quiet way to drop a guard without firing a shot.
Throw it at lone guards or alarm runners when a gunshot would give you away. Get close enough to land a clean hit, since misses are easy with the small reticle.
Skip it against heavy armor. A suppressed gun with armor-piercing rounds is more reliable on those targets.
Bait
Bait is a chunk of meat you throw to draw predators to a spot. Toss it near FND soldiers and let the local wildlife do the fighting, or use it to bring out animals while hunting.
C4
C4 is a remote-detonated explosive you place and trigger when the moment is right. It is your best tool for setting traps on roads, wiping out parked vehicles or blowing up a target without being nearby.
Dynamite
Dynamite is a timed explosive built for wrecking vehicles rather than soldiers on foot. Throw it under an armored car or tank and get clear before the fuse runs out.
EMP Grenade
The EMP Grenade shuts down vehicles, cameras and alarms in its blast. Throw one before you sneak into a base to blind its security, or stop a vehicle dead in its tracks.