Dowding,
I was looking at the same thing yesterday
However the game says there'll be some kind of an editor which can change units etc.
So hopefully those can be edited out... at least I don't want any terminators in my campaign.
Otherwise.. the demo is quite neat, albeit AI could be smarter than dash into the valley of fire from an ambush positions.
If wants to complete mission, a careful defensive style advance is enough to beat the demo missions.
Advances a bit and stops to defend - AI will come.
Although that way it became a very nice grenade festival, when I had advanced with my men to a good cover and then I just threw grenades at the groups of germans from there.