40 (+40 vs structures)
0.833 (can only be used once)
Volatile infested were made from the infested research team on Jarban Minor after the zerg overran them. They appear to be similar to normal infested colonists, but with a large explosive pustule on their chest, which explodes when it gets in range of a target.
Volatile infested appear in the Nova Covert Ops mission Night Terrors. They function as slower moving banelings, but have higher health. When harvesting from an extractor, waves of them will often appear from nearby caves, particularly those from the southeastern most extractor. Area-of-effect such as siege tanks or Nova's grenades can do well against clustered volatile infested. In addition, HERCs are immune to their acidic explosions.
Volatile infested use the same in-game weapon as banelings, the damage appears higher but campaign banelings have the same damage stat.