Patch 3.1 was the last patch released by Cavedog for Total Annihilation which upgraded it to version 3.1. Version 3.1 included most of the Core Contingency units, plus the ARM Phalanx and Stunner, and the CORE Copperhead and Neutron; all of which are units from the Battle Tactics expansion.
The Six Downloadable Units
After Patch 3.1 was released, Cavedog released six units available for download; three for each side:
- Resurrection Kbot
In order for any of these units to work in-game, Patch 3.1 must be installed.