I tough at the end you would have to disprove the fact that the arbiter knows the answer. Then when the arbiter defends his position claiming to be perfect, you would have to challenge his argument saying that his face is ugly, and thus he is not perfect.
That would be too silly i guess.
@Zepplid, i think CQC doesn't happen in the pillbox.
I ried to stop a volkstrum to be the last flanker putting my officer in the way, no CQC.
Maybe its the new patch?