Sidearms are a lot of fun and kill reasonably quickly as long as you're hitting crit shots. Fusion Rifles are just longer range shotguns that require an ounce of foresight and skill. Snipers are an invaluable tool to have and are easily the most threatening gun type in the game when wielded by someone with gun skill. Shotguns, despite what some people might think, require some skill as well but it's more to do with movement and positioning rather than gunskill. Personally I vary it up. I've been having a lot of success with Sidearms recently but I put on the Pocket Infinity for the first time in months and had a blast.

Oh maw gawd ppl actually use primary's

Shameless Bump