See reference for an example of usage in this context.

But then the Hummer/Humvee isn't a tank - in combat it wasn't supposed to be driving around where it could get shot at with heavy weapons. Armored doors and floor pan were added (the basis of the level two kit) for those situations where small arms fire was likely. It was never intended the Hummers would be taking RPG fire, or large calibre artillery shells (which form the basis of a lot of IEDs).