Whipped these up quickly, feel free to use any or all of them as you see fit!

Province Capital
T1: Lesser Chaos Altar
T2: Chaos Altar
T3: Greater Chaos Altar

Descriptions
T1: “The Ruinous Powers feed on the fervent worship of their followers, prostrated at the base of their altars.”
T2: “As the grip of Chaos tightens, throngs of worshipers gather at ever-growing shrines.”
T3: “Reality bends and breaks as dark litanies are sung in constant exaltation of the Dark Gods.”

Defense
T1: Warband Camp
T2: Warband Stronghold
T3: Warband Fortress

Descriptions
T1: “Warriors gather, swapping stories of savage conquest, while remaining ever vigilant and eager for bloodshed.”
T2: “As they press ever further into civilized lands, the dread hosts of Chaos construct fortifications to strengthen their hold over the conquered.”
T3: “Permanent towers rise from corrupted soil as the legions of the Dark Gods cement themselves in this place.”

Altar Improvement

-Ritual Hut
T1: Ritual Hut
T2: Ritual Circles
T3: Ritual Grounds

Descriptions
T1: “Dark Rituals call on the favour of the Gods of Chaos, to revitalise the wounded among the faithful.”
T2: “Though inclined towards destruction, the fell powers of Chaos can be turned toward the binding of wounds when it is required.”
T3: “At dedicated ritual sites, agents of the Chaos Gods work dark sorceries to return even the most grotesquely maimed warriors to the front lines.”

-Bleed Grounds
T1: Bleeding Grounds
T2: Fighting Pits
T3: Colosseum of Chaos

Descriptions
T1: “New blood is vital to any army, as is space for the whelps to prove their worth.”
T2: “Drawn by promises of power and the path to immortality, would-be Warriors of Chaos clash in Fighting Pits to earn their place among the Warhosts.”
T3: “Aspirants flood into unholy Colosseums as those seeking to earn the favour of the Dark Gods shed blood for their dread masters.”

-Twisted Relic
T1: Twisted Relic
T2: Unholy Ground
T3: Dread Sacrements

Descriptions
T1: “Dark coils of energy emanate from the altar’s corrupted relics, seeping into the very land itself.”
T2: “The very earth itself twists with the dark influence of Chaos.”
T3: “Twisted hymns drone endlessly in worship to the Ruinous Power and the air shimmers with raw power.”