The combat style of the Ace Mech warriors of the Federation was different before Ji Xinghe's few lessons at Scarred Gorge.
They were like nuclear weapons, not easily deployed onto the battlefield.
Three years ago, Cadelin disagreed with Ji Xinghe over combat styles and later made it clear that he would not choose Ji Xinghe's tactics.
Indeed, Cadelin did not adopt Ji's tactics and continued to fight in his previous style.
The reason for his sacrifice today was simply that he had not anticipated another Prince Mech arriving on the Alien Planet, disguised as a Duke Mech. Under the circumstances, Cadelin's White-headed Eagle Independent Group, with over a hundred Mech warriors, had to buy as much time as possible for a retreat, which was the only chance to preserve their strength...
Therefore, Cadelin's sacrifice could not be blamed on Ji Xinghe.
