Thanks for clarifying this piece of trivia, everyone.
About Militia: I agree that removing the plank in favor of a jump is a strange decision considering they overall improved the movement on the map, but I assume it has deeper balancing reasons we can't comprehend yet.
I also hope that Valve continues to revamp non-active duty maps, filling up the two neglected groups with popular Operation maps in the progress. If Valve actually commits some time and effort into this, the overall quality of the game would increase yet again.