quickflash

I have 2005 Focus 2 liter with 126,000 was stopped at a light and when I went to take off transmission would not engage. Transmission slips and has no drive in forward or reverse gear. Making noise no engine light, and no codes using ez-scan 6000. Fluid looks dark and has burnt odor. Will drop pan this weekend for visual. Has anyone else had this issue seems to be catastrophic not a selinod