I've taken all of OFP's single-player and campaign missions that take place on Kolgujev Island and converted them for use with Kegetys' Winter Kolgujev Island addon. The winter versions of these missions are all bundled together in Avon's Cold Cream Mission Pack. Download it from here (16.5MB). Make sure you read the readme file. If you have any problems, holler!
Special thanks go to squadmate Veit Wiessner for helping me to modify the missions to take advantage of the Winter Kolgujev Island addon's arctic camouflage soldier classes. MaxRes, Veit!