I'm loving Sharpshooter right now, even on the console where sniping is much harder (but still pretty viable once you get the hang of it).
That said, of the 3 signature weapons, the Tac-50 has to be the most obnoxious to use, especially if you're solo. With how aimbotty the AI can be, and how much damage they do in the harder content, using the Tac-50 is a real pain in the ass, as you have to pop up from cover, wait a couple of seconds for your crosshairs to settle in, and then fire, all the while your scope is shaking like you're having a seizure because enemies are hitting you.
The inability to pop out, fire, and get back into cover like you can with a normal sniper rifle is devastating.
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