EX Missions:To unlock the EX Missions, collect all of the Valhalla Orders. A specific solider in each stage from about Episode 13 and later has a Valhalla Order. You cannot return to get any that you missed.Panzer Demon:In mission 19, have Edward fire on Max, the lead Panzer Demon. This will cause him to flee. Then in mission 21, kill everyone except Max. After the last enemy dies you will have an over-powered Panzer Demon on your side. The Panzer Demon is the only character that can use the anti-tank rifle without a weight penalty.Achievements:ACHIEVEMENT – HOW TO UNLOCKCampaign 01 (20 points) – Complete Campaign Mission 01. Campaign 02-04 (20 points) – Complete Campaign Missions 02-04. Campaign 05-07 (20 points) – Complete Campaign Missions 05-07. Campaign 08-10 (20 points) – Complete Campaign Missions 08-10. Campaign 11-13 (20 points) – Complete Campaign Missions 11-13. Campaign 14-16 (20 points) – Complete Campaign Missions 14-16. Campaign 17-19 (20 points) – Complete Campaign Missions 17-19. Campaign 20-22 (20 points) – Complete Campaign Missions 20-22. Campaign 23-25 (20 points) – Complete Campaign Missions 23-25. Campaign 26-27 (20 points) – Complete Campaign Missions 26-27. Armed Recon 01-03 (20 points) – Complete Armed Recon Missions 01-03. Armed Recon 04-06 (20 points) – Complete Armed Recon Missions 04-06. Armed Recon 07-09 (20 points) – Complete Armed Recon Missions 07-09. Armed Recon 10-12 (20 points) – Complete Armed Recon Missions 10-12. Armed Recon 13-15 (20 points) – Complete Armed Recon Missions 13-15. Eagle