Besides, the more I thought last night about what Oerjan said, the
more inclined I was to disagree with him to a certain extent, to whit:
"They would still run a very serious risk of having most of their
peripherals scrubbed off their suits and any surfaces intended to be
transparent (face plates, camera lenses, lightly-armoured weapons
etc.) turned opaque by a myriad of tiny pock-marks,"
That would depend on the hardness of the materials out of which their
suits, peripherals, and transparent surfaces were made, as compared to
the hardness of the countermass being blown out the back of the weapon
-- again, something that is not completely random, but rather can be
factored in to the design of the suit and weapon.