Colonel Gaunt listened to the General with silent attention while following him. He didn't disagree with anything General Bishop stated expect that perhaps the General gave him too much credit. He did not lose men because of the fault of the men, but rather Thaddeus believed he lost men due to his own failings. In his vision, it was not the fault of his comrades at arms that they themselves did not have the same level of zeal for the Lord as he did. A servant is always willing to admit his own misdeeds, and the misdeeds of his own was that he was no leader. Thaddeus saw himself as a tool of god, and nothing more. A tool is to be used and discarded when the time came. A tool did not care if others cared for it. And a tool did not think for itself. Still he showed respect to Bishop with his silence. Then he saw the General's plan. Anger set in. 

More specifically anger that he would be fighting alongside a Catalyst. Faith is not learned, it is given! This above all was what set Thaddeus away from the modern view of god as forgiving and loving. To him only those born and raised under the gaze of the Lord could truly be the redeemers of humanity, the purifiers of God's wayward creation. And naturally only the Talon had their citizens raised under these conditions. This Catalyst, this Maria Vestes was simply UNWORTHY of being a holy warrior. 

"Sir if I may be frank, why are we allowing that Catalyst woman", Thaddeus said as he pointed towards the woman, "to even BE in the presence of those who hand down the Judgement of God?! She should be in one of the re-education camps praying away the Catalyst filth within herself under the watchful eyes of the inquisition! You know better than anyone else that the Catalyst are a hideous insult to God's image to man. A Gazere, a Steel Hawk, and maybe even an EDF would be more worthy of salvation than her!" 

He waited for the General's reply. If he was to be expelled from the squad before even been given command of it, then so be it. It would be more preferable than fighting alongside a Catalyst. Still, if he wasn't expelled he would accept his post in the squad he decided. What he really wanted was the General's opinion on it, and in effect his view of god.