Ok, now with that you can justify anything.
Personally, i like some kind of in-game logic, but that is of course a matter of taste.
Anyway, I would appreciate it very much, if one can modify the explosion and corpse recovery behavior via the ruleset.
In Game Logic: The Cyberdisc is an advanced weapons platform designed to battle the enemies of Sectoids. It is a terror weapon designed to close in on its target and annhilate it with no prejudice. The sectoids were pleased to that the Cyberdisc's internal power supply explodes with incredible force upon breach. It made their weapon that much more lethal against its flaws.
However, the Cyberdisc has a critical design flaw. When fighting in waves, it was important for the destruction of one Cyberdisc to not cause a chain reaction that fraticides. Such a fraticide could halt an offensive in its tracts, destroying a wave of Cyberdiscs, and any Sectoid within range. When exposed to massive increase in heat from explosive or incendiary damage, the Cyberdisc internal coolants overload and spills. When the Cyberdisc has underwent too much damage and the coolant system is flooded, its internal power source gets exposed to the leaked coolants, killing the needed reaction temperature to maintain itself. The Cyberdisc collapses in a heap.
A necessary evil to prevent fraticide...but an exploit that XCOM agents must use wisely to take a Cyberdisc out of commission in order to dissassemble.