Also ran into this issue, accidentally clicking the reduce EDF control button... now can't finish the game . Any chance for either a trainer option that only reduces it to 1, thus not screwing things up or some pointers on how to change it with something like artmoney (more or less pointless searching for a 0 value ;p)?
replay the mission...have u tried restarting the game...it usually starts with proper EDF control..remember this..never use the Reduce EDF Control option...