sniper_04,
Welcome to the forum!
Cold War Crisis IS the original Operation Flashpoint. The expansion pack is called Resistance and you should buy that, or the Game of the Year editing (GOTY) as soon as you can for £10/$15/€15 or less. Grab the patches from the official site
www.flashpoint1985.com.
You can get addons from the Addons Depot here at OFPEC - click on the link at the top of this page. There are many other sites, of which the most comprehensive is ofp.info. Beware though - unlike OFPEC, these sites do not check or review addons and many of the addons are faulty.
OFPEC is not a general OFP site so I'm afraid I'll have to lock this thread. We concentrate on editing related matters - creating missions, addons, scripts and other resources. If you have any questions or comments about the addons hosted at OFPEC, post on the
OFPEC hosted addons: feedback board.