On a more serious note, these structures are Death Guard foetid furnaces, which contain all of Nurgle's gunk that are spewed forth as toxic fumes from their chimneys.
This Putrescent Fog makes the Death Guard extra tough and killy by obscuring them in fog within 6" of its range, moreover, this stinks so much like shit that its Noxious Stink deals Heavy 2D6, S 4, AP-1, and D1 to all enemies within 6" of its radius. Even if one is destroyed, the furnace will likely burst in a Putrid Explosion, which, if you roll one D6, on a 4+ it explodes, and any unit within 6" suffers D3 mortal wounds.
Also, you can place it anywhere and seem to grow like a plant. It's Nurgle shenanigans, we ain't explainin shit.
|Forces of the Death Guard|
|Leaders:||Lord of Nurgle - Daemon Prince - Sorcerer - Chaos Champion |
Malignant Plaguecaster - Plague Surgeon - Tallymen - Lord of Virulence
|Troops:||Biologus Putrifier - Blightlord Terminator - Chaos Spawn - Deathshroud |
Foul Blightspawn - Noxious Blightbringer - Plague Marines - Possessed
|Vehicles:||Chaos Land Raider - Helbrute - Plaguereaper - Predator - Rhino|
|Flyers:||Storm Eagle - Stormbird - Thunderhawk|
|Spacecraft:||Dreadclaw Assault Pod - Kharybdis|
|Blight Drone - Contagion - Defiler - Foetid Bloat-Drone |
Myphitic Blight-Hauler - Nurgle Plague Tower - Plague Hulk
|Daemons:||Beast of Nurgle - Nurgling - Plaguebearer|
|Auxiliaries:||Cultists - Pestigors - Plague Zombie - Poxwalkers|
|Allies:||Chaos Daemons - Chaos Space Marines|