[If you haven't played the Devilss Descent Campaign ... DO SO!]

You get it on the repository on the www.battlefront.com website. You have to sign in to download files from the repository.

Once you download the campaign, unzip it and drop the uncompressed file into the "Campaigns" data folder in one of the subdirectories that the Combat Mission game was installed in on your computer.

Run Combat Mission ... when you click on the "Campaigns" button in the menu ... Devils Descent will appear!

Dumb question. If the file comes in an .rar file, how do you unzip it? I tried changing the name to .zip, no luck.

[Why are onboard mortars so fantastically inaccurate?]

Completely agree with the morar innacuracy. It is tied to the 81mm with a spotter. The howitzers track just fine. The 81mm are dangerous as then can and do land on your own troops. Based on the howitzers tracking well it looks like a bug in the 81mm process.