crazyd0gs: No I'm not finding the six units and since my system is the Mac OSX I am not shure how to install them into the Wine system .
pluto55: Same Problem here... Just the usual units. Running on OSX Yosemite.
I'm not personally familiar with the OSX and/or Wine filesystems, but the way it works in Windows is fairly simple. You just need the relevant unit files, and put them in the main Total Annihilation install folder, and they should work.
UnitUniverse has the six downloadable units, and a crapton of third-party ones as well, of..... varying quality, though the actual expansion content (underwater buildings, seaplanes, hovercraft, the Krogoth, etc.) isn't up for download, so if you don't have those, I don't know what to tell you unfortunately. (Third-party units might lead to crashes and conflicts, especially if you have two or more units trying to use the same construction menu slot;
Conflict Crusher should/might help with that, though I don't know how it would behave under a different OS.)