Vietmaul is the fourth and final Invasion Site in DAH: Big Willy Unleashed. It is tropical and in the middle of a war. Kluckin makes a deal and gets all the battle field dead, he wants it because he's copying Pox. It's sites included Kluckins Tempal Base, No Mans land, Hung Long Village, Fishing Village, F' Rhan Shrine, Kamer Biege Base, and the Yahtzee River.
At the end Pox decides to drop Big Willys and Crypto is upset because, as he puts it, "AFTER I RISKED AND REPEATEDLY LOST, MIND YOU, LIFE AND LIMB FOR THAT DUMB RESTAURANT"!! And Pox replies " I'm afraid my heart is just not in it anymore, I mean, Kluckin was just my first challenge, free enterprise isn't as easy as a Furon Invasion".