You will need:
Do not download unofficial IPA files. If you want Medieval II on mobile, buy the official version. If you need to restore a legitimate purchase or update an official app, use the App Store or your licensed account. total+war+medieval+2+ipa+upd
If you meant you already have the official app and are looking for an update (e.g., “upd” = update for a mod or patch), please clarify and I’ll help further. You will need: Do not download unofficial IPA files
Once your IPA is prepared with the correct game files, install it onto your iPhone/iPad. If you meant you already have the official
The "Input" refers to the raw data defined in the export_descr_unit.txt (EDU). This is the database entry for every soldier in the game.
The result is the visual animation (synchronization) and the deduction of hit points. Mismatched stats (e.g., high attack with slow animation) cause "Ghost Lancing" or failure to kill, which are common issues addressed in Community Updates (UPD).