AI's don't play cards: How to set up
When adding the mod to the game you’ll get the mod configuration. Here you’re able to specify for each AI playable card if AIs are allowed to play the card or not. Note that when adding the mod all the settings are on their default False value, when you want AIs to play a certain card (eg. the blockade card) you should tick the corresponding checkbox which will allow the AIs to play that card.
These 5 cards AIs play can be configured:
Note that AIs always play reinforcement cards, but canceling this is way more difficult due to the way warzone handles these cards. For a better explanation see AI's don't play cards: How does it work