What does United States Marines do in AoE3?

Minuteman: health regeneration set to 0, XP for kills set to 14, XP for building set to 14, damage (Siege) +725%. The game says: "Minutemen are upgraded to United States Marines. Marines no longer lose hitpoints and inflict more damage against Buildings, Ships and Artillery."

Home City card

United States Marines

United States Marines (tech ID DEHCUSMarines) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Fortress Age. Effect: Minuteman: health regeneration set to 0, XP for kills set to 14, XP for building set to 14, damage (Siege) +725%.

Quick answers (3)

Which civilizations have the United States Marines card?: United States.
What does United States Marines do in AoE3?: Minuteman: health regeneration set to 0, XP for kills set to 14, XP for building set to 14, damage (Siege) +725%. The game says: "Minutemen are upgraded to United States Marines. Marines no longer lose hitpoints and inflict more damage against Buildings, Ships and Artillery."
What is the tech ID of United States Marines?: DEHCUSMarines.

Minutemen are upgraded to United States Marines. Marines no longer lose hitpoints and inflict more damage against Buildings, Ships and Artillery.

What it does

Minuteman: health regeneration set to 0, XP for kills set to 14, XP for building set to 14, damage (Siege) +725%, damage bonus against Artillery +100%, damage bonus against Artillery set to 1, damage bonus against Ship +200%, line of sight +8

4 further effects (interface, visuals or AI) not listed.

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

In these decks

United StatesIII×1

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