More like 2.5. Didn't they destroy more tanks in the Gulf War than any other aircraft? Must be time for a flyable pig on lockon...
http://www.f-111.net/dash-1.htm
"In Desert Storm, F-111Fs completed 3.2 successful strike missions for every unsuccessful one, making it 47% more capable than the next leading strike aircraft.[24] The small 66-plane F-111F force was credited with 1,500 kills of Iraqi tanks and other mechanized vehicles. The F-111F was the only Desert Storm aircraft to deliver the GBU-15 and the 5,000-pound laser-guided, penetrating GBU-28." source wiki