They were all battle-hardened veterans; otherwise, they would not have been selected to pilot the Mountain-cutting Model Mechas.
When Han Li led the charge, the situation Tu Yuan was concerned about did not occur, namely the appearance of a Transition Gate device in the main force of the Empire, and a large number of Imperial Mechas suddenly appearing.
Therefore, he decisively ordered, mobilizing 1,500 Mechas towards the position of 2,000 Imperial Mechas.
Of these 1,500 Mechas, over 1,000 were modified from Imperial Mechas, their combat power being a cause for concern.
What's even more worrying is that the combat experience and operation level of the Mecha warriors piloting them were nowhere near as good as the Independent Group and the more than 300 chosen by Han Li.
Furthermore, they had a numerical disadvantage. A frontal group fight would definitely be lost, so their operation target was not a direct group fight, but rather to block the 2,000 Imperial Mechas.