โพสต์ดั้งเดิมโดย Lerd:

About the place holder lines, they can be seen on the scrapped version of Meet The Medic, as Soldier's seen saying "Don't you die on me." and "Medic!" on the start of it.

You might also note that for the Saxxy Trailer they only used lines from the game so they might not have ordered new lines for this trailer as well.