Speaking for myself, I make use of keyboard extensive even in SP. It's so much easier to press "b" to get to bombardment screen, "n" to get next unit or "t" to browse through targets (not to mention "f" for repeated fire or "z" for blind fire) than clicking on the button on sidebar manu - atleast for me
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This post, as well as being an ambassador of death for the enemies of humanity, has a main message of peace and friendship.