Andrea and Milton demonstrated firsthand last night that working together increases chances of bringing down a walker. The same is true in The Walking Dead Social Game. Whenever you group your characters during a mission, you get two moves per turn -- one for each character. That means you won't need to fret should you miss striking the zombie the first time; you'll get a second chance with your second character. When in danger, make each move count (even if you've got two of them).