Sadly, I think there is no way you can get them to save themselves and close the damned hatches. This is really too bad as, guaranteed, you will have those two guys get shot up if they encounter any kind of serious firepower.
This is especially annoying when it comes to IEDs, as some of the seemingly unavoidable IEDs on the Al Shamas (or whatever it is) level on the main campaign really devastate the two guys with their heads up, even from a considerable distance away.