New Rex has written
Here's a thing...
If you go to CS2D properties you'll see that is in United States English.
Yes, for example: "Favorite" is U.S. English (being Favourite British English).
But in some entities (I think it's dyn_wall or breakable) it's "Behaviour" - that's British! If CS2D is in U.S. English it should be Behavior...
I may prefer British, but since forums and most of the game is American...