I can't help much about the Wain problem since I can't download CI (too big of a file, I can't afford the bandwidth, sucks for me with so many cool free games around), but it might have to do with partial transparency? Does it help if you turn off dust?
As for limiting general's bodyguard, my own personal solution is to remove any trait that increases bodyguard size, so even at max exp and gear, they won't have ridiculous numbers. At least this way I can try to balance it out by testing in Custom Battles.
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