Open up the Mission.sqm of the mission you're creating (in notepad or whichever, I use notepad). Then scroll down and you should see various info of certain units placed within the game. Perhaps you'll come across something looking like this...
{
position[]={4889.103027,24.660000,11684.551758};
azimut=115.000000;
id=8;
side="WEST";
vehicle="SoldierWB";
leader=1;
skill=0.600000;
markers[]={};
};
This example was taken from a map I was making. It depicts a western soldier, his alignment is set to "WEST" meaning he belongs to the west team. If you want to you could type in "EAST" or "CIV and that would place that unit on the side respective to the name. I don't know what you'd put for resistance. Although I think that might solve your problem.