http://www.battlefront.com/helpdesk/inde...0&nav=0,10
1- install the base game, Combat Mission: Battle for Normandy. This will typically be v1.00 or v1.01.
2- (if available) install the Commonwealth Module. This will update your game to v1.10.
3- install the CMBN v1.11 patch. You can find it at
www.battlefront.com/patches.
4- install the CMBN 2.0 Upgrade, or the 2.0 Market Garden Bundle.
5- use your 2.0 Upgrade license key, or the 2.0 & Market Garden Bundle license key to activate. This will activate the base game and Commonwealth (if available), and Market Garden (if you installed the bundle).
5b- install the Market Garden module, unless you have installed the bundle already in step 3.
5c- use the Market Garden license key to activate the Market Garden module, unless you have activated it already in step 5.
(note the next steps are apparently placeholders- the actual steps are to load 2.11 and 2.12 patches)
6- if available, install the next Module. 6b- use your next module license key to activate.
7- Repeat 6 and 6b for all available modules.
8- if available, install the latest patch for CMBN. Usually, only one patch is required to update all game components, including the base game and modules.