Changing the original SP missions

[Bob O Enrabador]

I'm trying to add more units in the original missions and when I've done that in the German "Crete" mission thought it was very simple, but I can't manage to do the same for "Crusader" and "Tobruk". When I replace the "0.mi" files in "game.pak" for the new ones it just doesn't make any difference, the units I add don't show.
The new edited map files of "Crusader" and "Tobruk" are also stored in different places, for example, while all files of the new map "Crete" are stored at "Men of War\resource\resource\map\single\2\1-crete\" the ones of "Crusader" are placed in 2 different folders. The "0.mi" goes to "Men of War\resource\map\single\2\2-crusader\" and the map files to "Men of War\resource\resource\map\single\2\2-crusader\".
Is there a simple way of adding units to these missions?