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1.
A quantity. Like a gaggle of geese, or a school of fish. When multiple soldiers (4 or more) congregate together in the same area, they form a social group known as a Bastard.

A bastard does not have a distinct size or number of soldiers within it. Separate individual bastards in near proximity to each other may eventually merge into a larger, more powerful bastard.
"Go over to that bastard of soldiers and get one of them knuckleheads for me."
by KilleR R0b0T February 15, 2010