Country tag for Costa Rica is:
COS
If you want play for Costa Rica HOI4 you could use tag command:
tag COS
To annex Costa Rica in HOI4 you could use annex command:
annex COS
To delete all Costa Rica units you could use deleteallunits command:
deleteallunits COS
To add interests on Costa Rica you could use add_interest command:
add_interest COS
To remove interests on Costa Rica you could use remove_interest command:
remove_interest COS
To start occupation on Costa Rica you could use occupationpaint command:
occupationpaint COS
More country tags for HOI4 or more cheats for Hearts of Iron IV