Brother Tenor
	My space fighters are reporting negative damage; Round 2: 72 Space Fighters - 72 hits - -169 [1440] damage - 100% Round 3: 72 Space Fighters - 72 hits - -81 [1440] damage - 100% Bug?
Frabby
	I've also achieved negative damage, in my case with a volley of kinetic missiles. Looks like "overkill" is rated as negative damage when a position is completely destroyed and splash damage would bring it to less than zero MUs.