Act 1
-This is the first you will going to use, you must first play the act 1 and finish all the mission of act 1 before proceeding to act 2 for the next mission.

Act 2 
-Since you have finish the whole mission of act 1 you must proceeded to this act 2 for complete gameplay mission.

- [Information]

- Play Act 1 First 
- After Playing Act 1 Proceed to act 2
- Download Act 2 Army Ranger 2012
- After Download Play Act 2
- Complete gameplay mission

Question: Why act 1 must be the first to play the mission
Answer: Because act 1 is the first part of the mission then
proceed to act 2 when completing the act 1 missions.