All languages means any member can join, and All countries means no country targeting applies.
An all-languages Mission matches every member's Mission languages, and its instructions let you complete the requested actions in any language. An all-countries Mission matches every member's Based in and Active in countries.
In filters, an all-languages Mission matches any language filter, and an all-countries Mission matches any country filter.
A Mission can combine all languages and all countries with specific interests, so interest matching still applies.
