The tbim_skirmish.zip file you have requested: Mods / FoC Mods / Tactical battles improvement mod skirmish addon - 90.24kb is not available. Perhaps try browsing all files for the game Star Wars: Empire At War and upload any files you want to share or are missing. This is the only information we could locate:
This adds the Construction Ship, Advanced Construction Ship, and the Mobile Construction Vehicle to skirmish. The MCV is buildable in the light-vehicle factory for the Rebels and Empire. For the Consortium it's in the palace. The CS is buildable at a level 4 space station and level 5 for all. The ACS is buildable only at a level 5 space station.