This Alliance rifle launches 25mm mini-grenades. Lighter and more accurate than most grenade launchers, the Falcon burns through specialized ammunition as well as standard thermal clips. A field fabrication kit generates this ammunition, leaving the clips as the rifle's only limitation.
This weapon can strip shields and armor quickly, allowing allied snipers to land quick, decisive shots.
Because of the low ammo count, it is advised to choose a firing position close to an ammo box, as the Falcon will whittle through its ammo swiftly.
Following an update which reduced the Falcon's fire rate from 125 to 50 (2.5x slower), the effectiveness of the Falcon against single hardened targets is drastically reduced. It is highly recommended to equip an alternate weapon to deal with enemies like Atlases, Geth Primes and Banshees.
Shortly after the rate of fire reduction mentioned above, the Falcon's damage was greatly increased from 210 to 280 at Falcon I to compensate. Several more updates have decreased the Falcons weight, making it a very lightweight weapon that is perfect for power reliant classes. Furthermore, the ability to stagger any trooper-sized enemy on demand ensures that projectile powers can never be dodged.
The Falcon is an excellent support weapon, the airburst shells it fires will keep enemies suppressed and stunned should they be present in the blast radius. While it lacks the actual power to kill enemies swiftly alone, combined with a teammate(s) firing on your stunned targets, the enemy will be helpless and open for the team to kill, resulting in much faster kills and easier kills on potentially dangerous Geth Hunter and Phantom troops.
Utilising either Cryo, Disruptor, or Incendiary ammunition can allow users of the Falcon to snap-freeze, stun, or cause panic among groups of unprotected enemies. Used in tandem with allies, this weapon can set up enemies for deadly crossfires denying them the ability to retaliate. The added effects are the potential ammo explosions which can cause complete mayhem within enemy forces. Snap freeze and incinerate will prime enemies for tech bursts making this a potent weapon in the hands of an engineer, used in combination with said ammo powers this weapon is capable of obliterating large crowds of weaker enemies. This method is also very effective againt slow armored enemies such as the Atlas, weakening them to weapon damage from your teammates if the right upgrades are chosen.
Following a recent patch, the Falcon's weight has been reduced considerably. With the above point in mind, this makes it one of the best (if not the best) weapon for use by "caster classes" (ex. using a Warp + Throw combination as your main source of damage).
An Asari Justicar can with the extra weight and Assault Rifle evolutions maintain a 200% cooldown if the Falcon is completely levelled up. This also means your Reave will be devastating against any group which has been hit by said weapon.
The Falcon is an excellent weapon for crowd control and general support purposes. The grenade ammunition can be bounced both from the floor and off walls. It appears that bouncing the grenade off the floor, causing it to explode at chest level (which is very easy to do) is both more accurate and more effective at stopping and killing enemies. This effect in conjunction with Cryo Ammo is extremely powerful and effective, as you can freeze entire waves of enemies at a time, or slow more powerful enemies down.
The Falcon is quite a good candidate for a scope mod. This will allow you to easily keep track of your shells' paths.
With a thermal scope the grenades can be bounced around corners to damage enemies hiding behind cover, sometimes knocking them out into the open.