Verbatim copies of the 40250 flying-object units and the effect/fly Python modules replace the pending CFlyingManager stand-in and the two module stubs; initeffect/initfly run after initnet as in 40250 and the flying manager gets the background as its map manager. CMapManager::GetTerrainHeight is added over the native height tiles. login_flow checks playersettingmodule registered the indexed fly data. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>