Hands-On Usage
random_military_industrial_organization is commonly used in events or decisions to randomly select one of a country's Military Industrial Organizations and apply funding, unlock traits, or set flags. It is well-suited for "random reward" mod scenarios where you want to avoid always targeting the same MIO. For example, in a research event, randomly pick one MIO that meets a condition and grant it a size increase:
GER = {
random_military_industrial_organization = {
limit = {
has_mio_trait = { trait = basic_infantry_focus }
}
add_mio_size = 1
add_mio_funds = 50
}
}
You can also use include_invisible = yes to include hidden MIOs in the random pool, which is useful for narrative scripts that need to pre-operate on organizations not yet unlocked.
Synergy
- has_mio_trait: Used inside a
limit block to filter MIOs that have a specific research trait, narrowing the random candidate pool precisely.
- add_mio_funds: Directly injects funding into the randomly selected MIO — one of the most common reward operations.
- set_mio_flag: Sets a flag on the randomly selected MIO so that subsequent events or triggers can identify which organization was chosen via
has_mio_flag.
- complete_mio_trait: Randomly completes a research trait for one MIO; commonly used in scripted "technological breakthrough" events.
Common Pitfalls
- Forgetting
limit and selecting an unintended MIO: Without a limit, the effect picks randomly from all MIOs belonging to that country with no filtering. If you only want to target a specific type (e.g., tank manufacturers), make sure to include conditions such as has_mio_equipment_type or has_mio_trait inside limit; otherwise the effect may be applied to a completely unrelated organization.
- Calling this effect outside a COUNTRY scope: This effect is only valid within a country scope. If it is placed inside an execution block belonging to a STATE, MIO, or any other scope, the script will either throw an error or silently fail. Make sure the enclosing scope is a concrete country tag, or switch to a country scope first via
OVERLORD, ROOT, or a similar scope accessor before calling it.