Originally posted by Bjorn Bjornson
"i'm not exactly waiting for a similar unit to be made, seeing how it is a quite useless concept in civ3"
Actually I've found having invisible land units in Civ3 works pretty good for covert operations - pillaging and worker capturing. Of course it works better when its hidden nationality as well as invisible.
I had this long border with the French (the only rival a threat to me), and after I went to war with a weak neighbor on the other side, I've noticed workers and such near my French border disappearing. So the AI puts these units to good use, as well.
In fact, I've liked the idea so well, I'm going to add an ancient age unit for that purpose as well.
Oh yeah, after the first few incidents I stole the military plans from France and was tracking these French agents - they were busy; they were doing much the same to their other neighbors, the Russians and Germans as well.