Total Mayhem takes Total Annihilation, bugfixes and extends it the way Cavedog might have. Early game pace is quicker, many new units added (longtime players may recognise some 3rd-party units), including a whole new 3rd tech level tier. Existing and added units have been bugfixed, rebalanced, re-modeled, re-textured and re-rendered to equal or exceed the standard of the original TA units.
A more Cavedog look for the unit originally named the Gorgon by CUKEN. Also has a secondary blue laser. Big slow beefy boy. Yokozuna is the name given the top ranked Sumo wrestler, an appropriate name don't you think...