I am a new GM putting a group through the Council of Thieves story. One of the players rolled up a Human Gunslinger with Point Blank Shot, Precise Shot and using Alchemical rounds. He pretty much moves to a vantage point and destroys the NPCs before any other party members can get any offense in for themselves. A musket doing 1d12 vs Touch seems crazy, and it will only get worse as he levels up. I am using the Emerging Guns game setting that is recommended in the book for Golarion.
Has anyone come up with a more balanced method of running Firearms in their campaigns? I didn't want to put any restrictions on what Paizo books the players could use, but the gun issue already has some players concerned that he will pretty much steal the show for the entire Adventure Path.
Thanks in advance!