What does Plan of Ayutla do in AoE3?

Turns Insurgente into Revolutionary; Revolutionary: Food cost −10%, becomes available; Filibuster: Coin cost −10%; Californio: Food cost −10%. The game says: "All your Insurgentes transform into Revolutionaries. Revolutionaries are slightly cheaper and may be trained in batches of up to 10."

Home City card

Plan of Ayutla

Plan of Ayutla (tech ID DEHCPlanAyutla) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Industrial Age. Effect: Turns Insurgente into Revolutionary; Revolutionary: Food cost −10%, becomes available; Filibuster: Coin cost −10%; Californio: Food cost −10%.

Quick answers (3)

Which civilizations have the Plan of Ayutla card?: Mexicans.
What does Plan of Ayutla do in AoE3?: Turns Insurgente into Revolutionary; Revolutionary: Food cost −10%, becomes available; Filibuster: Coin cost −10%; Californio: Food cost −10%. The game says: "All your Insurgentes transform into Revolutionaries. Revolutionaries are slightly cheaper and may be trained in batches of up to 10."
What is the tech ID of Plan of Ayutla?: DEHCPlanAyutla.

All your Insurgentes transform into Revolutionaries. Revolutionaries are slightly cheaper and may be trained in batches of up to 10.

What it does

Turns Insurgente into Revolutionary(unit)
Revolutionary: Food cost −10%, becomes available
Filibuster: Coin cost −10%
Californio: Food cost −10%
Makes researchable: DEHC Plan Ayutla Shadow

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

Cost: 5001500
Sent from: IV
Times it can be sent: 1
Game ID: DEHCPlanAyutla

In these decks

MexicansIV×1

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