As others have said, they gave the Taurians more V-AAs as both a sign of aid and raw cash to upgrade their own armies. The Taurians ended up losing the most from the Trinity Alliance, but it did give them access to higher technology along with stealth armor. The Marshal 2C and other 3060 to Early Republic era designs for the Taurians refect this.
What I love is the continued move of the Taurians towards the French cavalry idea of fast attack unit backed by trooper mechs. You have fast heavies and Mediums that get support from Royal era trooper mechs like the T-bolt, the Marauder 2R, and the Warhammer 6Rb and 7A. Their Dark Age list is one of my favorites to peruse and build forces from. Now if we could only get a Level 2 version of the Toro from the Calderons, a new build version of the Talos, and a variant upteched Devastator DV1, I'd be a happy man.