In the final warehouse of Episode 2 Mission 2, Warehouse Run, it is possible to skip climbing the ladder to the second floor.

There is a small wooden box inside the final room of the level that slightly sticks past the green crates. It is possible to jump on this box, then from the box onto the crates, and thus make it to the final room without climbing the ladder. I've found that it is easier to make this jump while moving backwards, facing away from the green crates. With practice it can be done consistently, and it saves a few seconds.