What does Platoon Fire do in AoE3?

Carolean: damage (Ranged) +10%, damage (Ranged (stagger)) +10%, damage (Ranged (defend)) +10%, damage bonus against Heavy Cavalry +0.5. The game says: "Caroleans inflict more damage with their ranged attacks, especially to Heavy Cavalry and Shock Troops."

Home City card

Platoon Fire

Platoon Fire (tech ID DEHCPlatoonFire) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Fortress Age. Effect: Carolean: damage (Ranged) +10%, damage (Ranged (stagger)) +10%, damage (Ranged (defend)) +10%, damage bonus against Heavy Cavalry +0.5.

Quick answers (3)

Which civilizations have the Platoon Fire card?: Swedes.
What does Platoon Fire do in AoE3?: Carolean: damage (Ranged) +10%, damage (Ranged (stagger)) +10%, damage (Ranged (defend)) +10%, damage bonus against Heavy Cavalry +0.5. The game says: "Caroleans inflict more damage with their ranged attacks, especially to Heavy Cavalry and Shock Troops."
What is the tech ID of Platoon Fire?: DEHCPlatoonFire.

Caroleans inflict more damage with their ranged attacks, especially to Heavy Cavalry and Shock Troops.

What it does

Carolean: damage (Ranged) +10%, damage (Ranged (stagger)) +10%, damage (Ranged (defend)) +10%, damage bonus against Heavy Cavalry +0.5, damage bonus against Coyote Man +0.2

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

In these decks

SwedesIII×1

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