Editing existing scenarios?

[Crossroads]

I just spent an afternoon trying to figure out as how to change some units in an existing scenario.

Basically, I "just" wanted to add a few prime movers into a game, while removing some AA-capable halftracks and replacing them with regular AA-guns of the similar caliber.

In other words, I opted to change my task force in a manner that I could tow some of heavier guns while my AA-capabilities would became non-mobile.

I found this to be very difficult...

I managed to (manually using the notepad) change the .org file so that the new units are in play. (Added some independent units, looked at the file as what the unit ids were, and put them in a correct place) OK so far?

I managed to remove the units that were of a wrong type from the map using the scenario editor, and add the new units as they became available in the force dialog. OK so far?

All seemed well, but when I start the WF.exe with the modified scenario it crashes. Actually, it allows me to choose the side and optional rules, but crashes after that when presumably loading my modded files.

I spent an hour or so trying to find this information from here or from Matrix CS forums, but did not manage to find anything.

The scenario in question was (you guessed) a Panzer Leader scenario I have been raving here about, so according to design notes they were not locked up or anything (whatever that means...)

A virtual round of would certainly be offered to any kind soul who could push me to a right direction...

EDIT:

Gave up, deleted the modified files *.org and *.map (which I did not even touch) files, decided to keep the modified *.scn for a file.

Then, started the game up one more time using the mod'ed *.scn but with original *.org file ... And it seems to work ??? Ran a few quick turns on both sides and everything seems A-OK?

NOW I am confused :conf: