Having this issue with 2 players. I only have the basic game. It doesn't even matter if I choose the map and start de set up or my opponent does it, whenever we reach turn 3-4, I can't load it. If it is a unit bought belonging exclusively to Fire and Rubble, why can I load the file from my opponent containing already those units, but not the subsequent one? they have checked thoughtfully and discarded possible units. May be they are missing certain infantry formation equipped with handguns used only in F&R, or some sneaky vehicle (these are easier to spot) or unit...i don't know.
I guess is not a file incompatibility problem, so how to make sure they select only those components "allowed" to play versus a vanilla player? It seems there is not an easy way to exclude those elements. Even checking the manuals, only vehicles can be easily discarded. I can't say to any fellow player I meet: "hey uninstall your DLC....". How come there isn't an easy way to deselect dlcs or filter units out? If there is and I'm missing it, please enlighten me
Truth is I haven't been able to play a single CMRT game yet

, so any help is more than welcomed
Big thanks!