The Phoenix Battle Group had been a part of this battle right from the beginning.
As such a reliable force, Perbov of course wouldn't overlook them.
On the contrary, they were his ace in the hole.
He was aware that the Alliance Army held a complete advantage in all aspects against the enemy, except for the Knight Titans.
If you let these Knight Titans loose, one Knight Titan tearing apart a hundred Lion Tanks was not a problem.
Conversely, the Alliance's conventional forces found it extraordinarily difficult to pose a threat to these terrifying war machines. If it came down to a direct confrontation, then they could only send enough armor units to serve as 'sandbags' to take the hits, to act as meat shields. Then, they would use the tanks' armor-piercing cannons and heavy artillery from the rear to wear down the Knight Titans' energy shields until breaking through and ultimately destroying them.
The casualties in this process were simply incalculable.