The action in the screenshot took place off the east coast of England while I was stalking a convoy and the Luftwaffe turned up and attacked it. The escorts immediately opened fire on the attacking planes and that's what you see. Presumably they are AA shells.
Nemo
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"I'm afraid there is no disguising the fact that King's obsession with the Pacific and the Battle of Washington cost us dear in the Battle of the Atlantic".
Sir John Slessor GCB, DSO, MC, DL
AOC-in-C Coastal Command RAF
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