That is a message series.
Consider that Dibbs exit many turns ago and that Dibbs & mrscot were playing in the same side so Dibbs didn't shoot to mrscot. At the beginning I tought Dibbs shooted to mrscot and in that turn mrscot pick up the "fire" chit...

http://www.youplay.it/play/bm_GameMove.asp?GameID=159022&UserID=Swartz
21. Dibbs - mrscot was shot down by consequences of fire damages.
21. mrscot - mrscot's plane fire extinguished.
21. mrscot - mrscot damaged by fire.

Swartz