Okay, I figure the odds of this working are fairly low, but I should check just to be sure.
I'm getting ready to run a module for some friends as my first time GMing, just a short 1st/2nd level dungeon crawl. The issue is that the author of the module included two swarms (both of which the players will probably stumble into), and I'm slightly worried that it will result in a TPK unless the party specifically prepares for it.
One of my players has told me that he wants to play a Gunslinger with a Blunderbuss. Given previous Gunslingers that he has played, he probably wants it for the AoE damage effect (that really seems like the only reason to take that weapon instead of the Musket). I know that normally weapon damage does not apply to swarms, but would the Blunderbuss be able to damage them with the AoE effect?