DeltaJ 0 Posted October 11, 2005 I trying to play the vietnam 1969 campaign but I keep getting this error message. cannot load mission; missing addons: groups. what the heck is that i can't find a groups add-on anywhere. Share this post Link to post Share on other sites
Placebo 29 Posted October 14, 2005 You've already had one identical thread closed in user missions with instruction as the correct way to resolve the issue. Share this post Link to post Share on other sites
