The ship on a distant plateau, having landed and not fallen like the wreckage and was clearing snow out from under it occasionally, opened its hard points as a small life sign crept towards it. The cannons waited for it to come close enough then fired, vaporizing the furry rodent on contact. It wasn't loud, but it echoed, very softly. Not loud enough at a distance for a human to hear without assistance, anything more sensitive would definitely pick it up though. That and a small burst of non-harming EM radiation from the heated air around it, probably causing a dim flash. Most certainly odd for a planet that was supposed to be deserted of advanced life, although it could certainly be a misfire from a wreckage, but it was still too early to know.