Weapons

Cannons
"If it was good enough for the defenders at Castle Kriegstok, it's good enough for me!"

The mighty cannon has been a fixture of Imperial military tactics for centuries, but it is only within recent years that it has found new popularity as a handheld weapon. After an infamous siege, in which Imperial soldiers adapted their fixed signal cannons to serve as makeshift, hand-carried guns, personal cannons rapidly became the standard weapon of heavy infantry. They were particularly popular among Imperial Engineers, who often built their own, casting them into fearsome shapes. Now, decades later, they have somewhat fallen out of fashion, but still show up from time to time, particularly in the savage wilds of Vilderan.

Fist weapons
"Those Berserkers are so deadly with their claws that it's easy to forget they weren't born with them."

Fist weapons—including everything from knuckle dusters and claws to trench knives and the exotic katara—are popular weapons among the barbarian tribes of the frozen north, where predators don't always give their prey time to unlimber a bigger weapon. The Valgang warriors carried these weapons with them on trading and raiding missions to the south, introducing people all over the civilized world to these decidedly uncivilized weapons, and demonstrating just how brutally effective they were in the hands of someone strong and fast enough to properly wield them. Fist weapons quickly caught on with the criminal element of the Empire, but Berserkers are still their undisputed masters!

Great weapons
"If you're not killing your enemies with both hands, you're not getting the most out of your weapon."

Considered by some to be the crudest of fighting implements, two-handed or "great" weapons are seen as the weapons of brutes and savages, despite the fact that greatswords serve as the badge of office for the Emperor's Guard, and Imperial Engineers use massive, two-handed spanners and hammers on a daily basis. Aficionados maintain that great weapons require more skill to wield properly than other weapons, and are considerably more effective in the hands of a true expert. Even so, no one can deny that a solid blow from a greataxe or greatsword does some serious damage, and so blacksmiths the world over always find great weapons in high demand.

Source

 * Official Torchlight 2 site