It is located on the couch in the room where Shepard first encounters Archangel. Originally manufactured by Elanus Risk Control Services for the Blue Suns Mercenaries, the Vindicator became popular with other mercenary groups and assassins. Shepard can find the Vindicator on Omega during the 'Archangel' mission. Effective against armor, shields and biotic barriers, it does 1.25 percent damage against each and fires a 36.8 base damage. The M-15 Vindicator is often used by assassins and mercenaries because each five-round burst can be fired with incredible accuracy at any range. With the targeting upgrade, it becomes equally effective at mid-range as well. The bonus damage modifier is 1.25 percent against shields, armor and barriers, allowing Shepard to spread damage across large numbers of weaker enemies to take them out and advance the fight. Because the recoil is on the lower end, long-range accuracy is much higher than other assault rifles.

However, along with the Geth Pulse Rifle, it has the lowest base damage, dealing just 10.8 damage per round. The Avenger has the second largest ammo capacity at 400 rounds, 440 with the Armor Pack. It can be acquired later in the game for players who specialize in assault rifle training. As the default starting weapon for soldiers, the Avenger becomes accessible during the 'Freedom's Progress' mission after Shepard's first meeting with the Illusive Man, but only if the player character is a Soldier. Manufactured by Elkoss Combine, the M-8 Avenger is one of the game's most accessible and common assault rifles.

Mass effect 2 geth pulse rifle