The double-barreled Tigris shotgun fires two bursts in rapid succession, easily taking down the toughest prey.
The Tigris is a Tenno double-barrel shotgun, shown in the Update 11 highlight video. This weapon has a unique firing mechanism, holding down the attack button will fire only the first shot; releasing left-click will then fire the other. Tapping the attack button once will fire both in rapid succession, thus making this weapon flexible against heavy and light enemies.
Using the Tigris requires a very different mindset from other shotguns; whereas the other shotguns all allow quick follow-ups, the double-barrel Tigris has to pick and choose its shots more carefully. Similarly, the Tigris is not a DPS machine, instead focusing entirely on burst damage. Bear this in mind when using it and it quickly will become a valuable asset.
Whilst the Tigris normally fires both shots in rapid succession, holding down the attack button will fire only the first shot; releasing left-click will then fire the other. This can be used to manage and place shots more efficiently.
Reloading can be used to cancel firing the second shot.
Performing actions that would normally cancel charge attacks (ex. rolling, ledge grabs etc.) when the first shot has been expended will lock the second shot in place, preventing it from firing when the attack button is released; the shot will only be triggered upon tapping the attack button again. This can be used to conserve the second shot without constantly holding down the attack button.
Due to the weapon's low clip size and tight spread, consider using Seeking Force in order to deal with large groups more effectively.
The Tigris' high base damage makes it effective against lightly armored/shielded enemies such as the Infested. When fighting heavily armored/shielded enemies, consider using Corrosive and Magnetic respectively to take advantage of the the Tigris' high status chance.
Whilst the Tigris is powerful and very accurate, its low pellet count means that even one projectile missing can significantly reduce the firepower of its shots. Hell's Chamber is absolutely essential for maximizing the Tigris' firepower.
As the Tigris has extremely low ammo capacity, upgrades such as Ammo Stock at Rank 5 (+60%) will have little effect, though combining it with Burdened Magazine at Rank 2 (+30% Capacity, -9% Reload), for a +90% magazine capacity combined total, will raise capacity to 4. Any more of either mod will be wasted unless combined with each other.
When having 3 shells per clip however, the first 2 will fire normally but there will be a short delay before the extra one can be fired. This delay can be decreased by Shotgun Spazz, although this will have no effect to the already very fast burst of the first 2 shots.
With a clip size of 4, you can fire 2 bursts, with a short delay between them.