Dynasty Warriors: Gundam Reborn - The Threat of Zeon

The battle begins with some Zeon forces surrounding White Base, so you will need to go to both fields and take them out. Of course, after taking the first field, Ramba Ral decides to show his face not too far from White Base, bringing with him some Reinforcement Commanders. Defeat them all and White Base will begin heading towards Odessa Base.

Of course, this makes two fields appear in front of the gates leading to Odessa. This will also make a new defeat condition, with both Kai and Hayato having to stay alive. Remove those two fields, then the gates leading to Odessa will open, and a bunch of new fields will appear. Take out the first two on the northern and southern routes, and Kai and Hayato will get ambushed by Ambush Commanders at the second sets.

However, at around the same time, Gaia, Ortega and Mash will appear near White Base, so you will need to rescue both Kai and Hayato, as well as the White Base. Once you have done that, you can start moving your way towards Odessa Base, with the knowledge that Gaia and Ortega will appear once more near it. Defeat them both, capture the Odessa Base (will need to defeat a Garrison Commander), then take down Ramba Ral, who shows up afterwards, to finish the battle.