I haven't ever been able to figure out how to retrain units in Medieval or Shogun. Also, it appears that retraining a unit costs more per man than just building a new one- what are the advantages of retraining over simply building a new unit? Do the new men in the unit benefit from the experience of the old?
Also, do individual men within a unit benefit from their high valour if they are higher than that of the rest of the unit, or do they just take the unit's valour rating?
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