Re: The Best Around Achievement stuck at 80/81 - Tiberian Dawn
Actually, I now managed to work around the problem (try at your own risk):
Delete the save file (make a backup first), located at "\Steam\userdata\<your ID>\1213210\remote\Player_TD_settings_1.bin". (I'm guessing that with similar issues related to Red Alert you should delete Player_RA_settings.bin instead). To be sure, you can just cut/paste the whole "remote" folder somewhere else. This resets your ingame progress (but not the Steam achievements, of course). Also make sure you disable savegame syncing for C&C in Steam before attempting this.
After that you can play again the mission(s) that the achievement is missing. The downside is that you have to play the mission again, and this is a bigger inconvenience if you don't know which mission it is or if there are many.
After doing this and getting the missing Steam achievement you can copy your savegame file(s) back. I managed to get my ingame progress back this way, but try this at your own risk! Getting back the saves I had ingame (under save/load mission) required some additional fiddling around (at first the "load mission" was still empty and I had to make some new saves and restart the game multiple times). Also remember to put the Steam savegame syncing back on.
