For those interested, I did some research on the scenarios included in the Kickstarter campaign to come up with their chronological order. Here's what I came up with so far...
1. Days Gone By
2. No Sanctuary 1-6
3. Fort Benning A,B
4. What Lies Ahead 1-3 (Traffic Jam, Bloodletting, Trigger Finger)
5. Better Angels
6. What Lies Ahead 4 (Beside the Dying Fire)
7. Killer Within 1-2 (Seed, Sick)
8. Walk With Me
9. Killer Within 3 (Killer Within)
11. Made to Suffer
12. Woodbury Arena
14. Killer Within 4 (Infected)
How accurate is this? Not sure but I'd appreciate any suggestions on errors you may notice.