What does Advanced War Huts do in AoE3?

War Hut: build limit +6, hit points +25%; Tomahawk: train time −40%; Aenna: train time −40%; Forest Prowler: train time −40%. The game says: "War Hut build limit, training speed and hitpoints increased."

Home City card

Advanced War Huts

Advanced War Huts (tech ID HCXPExtensiveFortifications2) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Fortress Age. Effect: War Hut: build limit +6, hit points +25%; Tomahawk: train time −40%; Aenna: train time −40%; Forest Prowler: train time −40%.

Quick answers (3)

Which civilizations have the Advanced War Huts card?: Haudenosaunee.
What does Advanced War Huts do in AoE3?: War Hut: build limit +6, hit points +25%; Tomahawk: train time −40%; Aenna: train time −40%; Forest Prowler: train time −40%. The game says: "War Hut build limit, training speed and hitpoints increased."
What is the tech ID of Advanced War Huts?: HCXPExtensiveFortifications2.

War Hut build limit, training speed and hitpoints increased.

What it does

War Hut: build limit +6, hit points +25%
Tomahawk: train time −40%
Aenna: train time −40%
Forest Prowler: train time −40%

Cost: 1
Sent from: III
Times it can be sent: 1
Game ID: HCXPExtensiveFortifications2

In these decks

HaudenosauneeIII×1

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).