I believe, the 'interception' logic is broken too. If I intercept (while sitting in a fort, for example), I get to defend for some reason... So, in your case, the AI might have 'figured' the same. If it intercepts You, it gets to 'defend'.I agree, it's shocking on defence. Strangely though, when the AI has attacked me or intercepted me on occasion (very occasionally!) they have sized up my position and obviously calculated an attack is suicide. Then they just sit back and I'm forced to go on the offensive to end the encounter.
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