the dark return map from my campaign in skirmish mode for your pleasure:
to install it :
1- Download the file
2- Extract the map pack everywhere you want
3- copy/paste the folders in it, to the following directory: C:\Users\Your Username\AppData\Roaming\Red Alert 3\Maps
if you have any suggestion to upgrade it, tell me in the comment bellow
good luck in the battlefield commander's !