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.
The Boss is BACK! Now at Tier 3 it is The Boss of amphibious assaults. It has moderately high damage and quite long range. It works quite well as a land-based unit also.