In French, bataillon d'exploration is the name used for the Survey Corps, the elite soldiers at the centre of Attack on Titan who fight Titans outside the walls. The phrase therefore works as an in-joke for French-speaking fans: whatever impossible or reckless thing has just happened is presented as ordinary duty for that unit. Short French anime voice lines travel well as reaction sounds because they are easy to drop over gameplay, edits and memes, even for viewers who do not speak French, and this one keeps circulating because its deadpan logic fits almost any over-the-top clip.