i played it yesterday.i had very good time!!but i had one question.
What is terrain DRM when allied unit in 0808 battle into France unit in 0908?
Is it -4DRM for the walls of Paris?
Or is it -5DRM for the walls and Canal?
Hi! You're right, it is a fun game.
As for the DRM in your case, you add the terrain modifiers together.
The second part of rule 7.4c states (in the original French) Sauf indication contraire, les MD de terrains sont cumulatifs. - (in English) Unless otherwise indicated, the terrain DRMs are cumulative.
If you add all the DRMs together you have -4DRM for the walls, -1DRM for the canal and -2DRM for the city, totalling -7DRM. That sounds like a lot but it is in line with rule 7.4c.
Hope that helps