Does COD4 have a mission editor like OFP? Or do you end up playing Catch the Flag and the usual modes online for the rest of your life? Althought the original campaign from OFP was quite simple, the mod community was able to create campaignes and mods that just blow your mind away. Check the FDF mod (Finnish Defence Forces) at youtube or at www.ofp.info.cz. Or the more recent ARMA campaigns at www.bis.com.