I somehow found this mod: Latin Battle Event messages. This mod switches out the English battle event messages for the Roman factions in Rome Total War (RTW1). I think this would be suitable addition to Europa Barbarorum.

Is it possible to adapt this to M2TW engine, especially on EB 2.35? I would like to mod this myself but I don't know where to start.

Here's some samples of the mod:

https://youtu.be/fHxadnNlKBE
The mod file is available in the linked source.

Thank you.