Please subscribe to see more awesome video game footage. Okay. This evolution mission is a strange one. The Mutalisk Evolution Mission involves two strains like all the rest. However, the strains allow the Mutalisk to have the ability to morph into one of two units. The Brood Lord or the Viper.
So the Corrupter originally was the unit that morphs into a Brood Lord and it still does in melee games. As for the Viper, you can hatch one out of a Larva at the Hatchery in melee games. In the campaign, that isn't the case at all limiting what units you can and can't have. So after completing the Mutalisk Evolution Mission I have to choose between allowing the Mutalisk to morph into a Brood Lord or a Viper.
![](https://s2.save4k.ru/pic/6pDHal9f57Q/maxresdefault.jpg)