機動戦士ガンダム 一年戦争功略

The link of that is:
http://www.gamefaqs.com/console/ps2/file/925996/36263

The document basically talking about the followings:

Table of Contents
-------------------------
1. Introduction
2. Game System
2.1 Controls
2.2 HUD
2.3 Weapons
2.4 Advanced Techniques
3. Unit Profile List
3.1 E.F.F.
3.2 Principality of Zeon
4. Story Mode
4.1 E.F.F
4.2 Memorial Action
5. Others
6. Recognition


Mostly, you may have to read more about the Story 4.1 but also to read the Profile List 3

Hope This can help you la!

The game english name is "Mobile Suit Gundam: One Year War"

Please Try to Search it by using "Mobile Suit Gundam: One Year War"