Salut !
Voilà les instructions (en anglais) pour avoir ces maps bonus je te les copie colle ici (pour toi et eventuellement les autres qui cherchent la même chose)
"
For all of you out there who have the Steam version of the game and can't install the patch and/or extra maps.
Here's the deal:
In order to install patch 1.3 and the maps for Steam, you'll have to add some things to the Registry.
The problem when trying to install the patch is that it doesn't recognize the installation path. By changing (or creating) it on the Registry, makes it work.
You have to create on HKEY_LOCAL_MACHINE\SOFTWARE\ the following key (the folder like thing):
Ubi Soft Entertainment
Inside this key you'll have to create:
SPLINTERCELL
and
Tom Clancy's Splinter Cell
Inside Tom Clancy's Splinter Cell you then create 1.00.000
Now go back to the HKEY_LOCAL_MACHINE\SOFTWARE\Ubi Soft Entertainment\SPLINTERCELL key and add the character strings of the table below:
Name............Value
ExeName.........SplinterCell.exe
InstalledPath...C:\Program Files\Steam\steamapps\common\splinter cell\system
InstallType.....Full
Your registry should now look like somewhat like this:
HKEY_LOCAL_MACHINE
..\SOFTWARE
....\SPLINTERCELL
........ExeName SplinterCell.exe
........InstalledPath C:\Program Files\Steam\steamapps\common\splinter cell\system
........InstallType Full
....\Tom Clancy's Splinter Cell
.......\1.00.000
After this, then follow the instructions found on this link.
Patch 1.3 - Help Look on the 8th post from top to bottom.
If you do everything right, then you'll be able to play the missions.
They are very nice and worth of the trouble installing them.
Now it is time for some old-fashioned Splinter Cell Stealth action!!!"