I have just installed the game with all DLCs that were offered in a pack from Steam. No other mods are installed.
When I start a campaign the game runs for a minute or two and crashes. Usually at the same point. I have tried this on two campaigns and it is crashing conssitently in both.
The crash might be related to helicopters. I was always near one when the crash happened. I have also tried the Remanants of War campaign and there were no crashes after about 10 minutes of playing.
I also tried a single mission and the issue did not appear there.