Achievement running- please convince me to level up sharpshooter

Just as the title says- I've been achievement running with some friends since last summer and sharpshooter is my lowest level perk, not even 15 yet, and I just... do not enjoy it. I've yet to find a weapon I enjoy using. I hate the zoomed in scopes, I find it difficult to shoot with them, and just have not found a play style or weapon I enjoy enough with sharpshooter but I want to max it for the achievements.

Those of you that run sharpshooter, what do you use? Why do you enjoy it? Convince me to play it more.