You must of tried using it when you had already upgraded your other weapons or you have a particular playstyle. Certain augs compliment certain weapons too...like reticle spread whilst moving.WanderingFool said:Off the top of my head?
Shotgun from DE:HR (not the silverback, the vanilla one)
I used the shotgun on my second playthrough...it was a very impressive weapon...only weakness is long range.
I stunlocked the second boss (yelena) with my upgraded shotgun..didn't even know you could stunlock bosses.
The revolver with explosive rounds is a better choice because it takes less inventory space but it is more noisy and close range shooting will kill you. With the shotgun I shot bosses and heavys in the face
I found the combat rifle weak half way through the game...you can't even headshot medium armoured guys...you need 3 headshots...which means you better have fully upgraded your recoil aug. It's saving grace was homing bullets.
The sniper rifle was also useless..sniping suits a stealth playthough yet it was not silenced. So it kind of becomes useless in most cases. And it takes up so much inventory space that holding it for the few instances you can use it isn't really worth it.