The dd_13.exe file you have requested: Official Patches / v13 / Hearts of Iron II: Doomsday v1.3 Patch - 16.65mb is not available. Perhaps try browsing all files for the game Hearts of Iron II and upload any files you want to share or are missing. This is the only information we could locate:
New features - Added a new supply tech in the Infantry tech tree: Semi-Modern Repair- Added a new armoured car tech to the Armour tech tree: Modern Armoured Car- Added a new engineer model (Engineer '43), enabled by Front Line Supply Service A patch updating Hearts of Iron II: Doomsday to v1.3. It adds new features, AI tweaks, bugfixes, gameplay balancing and various scenario adjustments.