Arthur has had it with being manipulated, with waiting for something to happen, with not being in control. The enemy's playing games and has every intention of using them and throwing them away like a two-bit hooker past their prime, and, honestly? The team's done with this rubbish. They've been pushed around, kept in the dark, strung along.
Now it's time to push back, to take risks, and to hope it's not going to go all to Hell.