The cvilian building "McBurger Kong" spawns at least one, but usualy more "mininuke" animations when destroyed.
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I know that fast food can cause explosive diarrhea, but that's just overkill. Also, the building does not leave behind rubble after it's destroyed.
This was already present in vanilla RA2, so changing it is just a matter of preference. I also think, that those "shrooms" are just for the visual, as I don't remember it killing my inf. when nearby.
Edited by Sizyfos31, 17 May 2014 - 01:22 PM.