Fun fact: the skitarii are so radioactive that every organic lifeform that they "save" will end up dying of terrible cancers sometime later!
I'm still new to Warhammer 40k, and I have gotten attached to two unit types that seem to be very prone to death (kriegers and skitarii), and I'm not sure if it's just coincidence and I have the tastes of a factually inaccurate lemming, or if it is so that everyone in the 40k universe is very prone to dying.