[tinkthank]

I dont think that more spies/scouts give you more accurate information, but that is only judging from my own experience not looking at any code.

Usually, the word "spy" appears in some form of the flavor text to let you know that this unit is a spy: examples include the Bard, the Consort and the Ear of the Lord. In general, spies have better stealth than scouts, so that should be a giveaway too. (Scouts have stealth +0, while spies usually have around stealth +20 or more except the Ear who has +10 IIRC. In any case, spies have more than +0 unless I am mistaken; units with Glamour dont count, and I dont think there is a Glamour-ed spy. The usual suspects (Van, Man-Tuatha) don't have spies.)