To win, you must capture all towns and castles and defeat all enemy heroes. Regardless of which side you choose, the other will forever consider you a traitor.
Neutral female narrator: Representatives from both Tatalia and Krewlod seek your services... again. Both nations claim the last strip of Erathian land between their countries. Few Erathian castles remain in the area. They are nothing more than token resistance. The most ferocious battles will occur between Tatalia and Krewlod. Ironically, this land has little value. This is a border war. Tatalia seeks to further extend its reach from the lowlands to the hills. Krewlod wants to halt Tatalia’s march before it reaches their northern border. No matter which side you fight for, the other will perceive you as a traitor. Choose wisely. Choose the winning side. Your life depends upon it.
Scenario
Timed events
Day 1 - Tatalia intro part 1
You receive a message from King Tralossk - "I am pleased that you have chosen to side with us. Your knowledge of how those stupid barbarians fight will give you an advantage, though it is very likely that Duke Boragus has put a price on your head for being a traitor."
Day 1 - Tatalia intro part 2
"This will be a fight to the finish. We wish to extend our borders into the Krewlod hills, and they wish to stop us. A token Erathian force will likely get caught in the middle, but there is simply nothing we can, or wish to, do about it."
Day 1 - Tatalia intro part 3
"Do well, and you shall be idolized by all of Tatalia. Fail... well, we don't need to discuss that just yet." The letter is simply stamped with the scaly insignia of House Tralossk.
Day 1 - Krewlod intro part 1
You receive your orders from one of Duke Boragus's generals. "I've never liked mercenaries myself, but you've managed to prove yourself worthy enough to get offered a second contract. I hear that ol' Tralossk was so mad you turned him down that he ordered your head delivered to him in a basket!"
Day 1 - Krewlod intro part 2
"Anyway, in case you hadn't noticed, this is a border war. Ol' Tralossk has got it into his head that he'd like some of our territory. YOU are here to stop him. Duke Boragus likes you, but your life won't be worth spit if the Tatalians show up at the doors of the Duke's Palace."
Day 1 - Krewlod intro part 3
"Now, your orders are clear. Stop the Tatalian advance, then beat those sorry Lizards so far back across the border that they'll never even THINK about dry land again. Oh, and while you're at it, get rid of those pesky Erathian outposts. Have fun!"
Defeat All Enemies
Lose All Your Towns and Heroes
or 
Neutral female narrator: Representatives from both Tatalia and Krewlod seek your services... again. Both nations claim the last strip of Erathian land between their countries. Few Erathian castles remain in the area. They are nothing more than token resistance. The most ferocious battles will occur between Tatalia and Krewlod. Ironically, this land has little value. This is a border war. Tatalia seeks to further extend its reach from the lowlands to the hills. Krewlod wants to halt Tatalia’s march before it reaches their northern border. No matter which side you fight for, the other will perceive you as a traitor. Choose wisely. Choose the winning side. Your life depends upon it.
Gnoll Marauders, 50 
Lizard Warriors
Wolf Raiders, 40 
Orc Chieftains
Fortress
Fortress
Castle
Castle
Stronghold
Stronghold
Your 8th most powerful hero from Borderlands.
