This simple patch re-adds both versions of Sturm into the War Room and Vs. Mode, and unlocks all COs in BattleMaps for purchase by default (purchase for free).
Both versions of Sturm look the same. The Campaign version (unlocked by default) comes before the Vs Mode version (purchased from Hachi).
Note: To quickly progress to the main game, beat the last Field Training mission and then earn coins by completing another mission (Campaign/War Room) to unlock BattleMaps.
Database match: Advance Wars (USA)
Database: No-Intro: Game Boy Advance (v. 20210227-023848)
File/ROM SHA-1: D0A0A4CFE9B95AC7118F7EF476F014CA0242EB65
File/ROM CRC32: DBEF116C