Due to the make-up of my gaming group - players who like plenty of combat and minimal problem-solving and NPC interaction - the games I run tend to be what I call You Point, I Punch:
The PCs are sent to fight or kill something, usually a group of bad guys before they can do something bad.
This occasionally has elements of Clearing the Hex, Most Peculiar, Momma, Ounces of Prevention, Pandora's Box and Troublemakers, but the investigative bits are done by NPCs.