Well I imagine the spy would be SMART so as not to be detected by other units..... except footsoldiers who really would notice...
Alright would it be better if only direct air and land units could hit the spy when hidden? Not only that but would a price of 10000 work? (Personally I think it's a bit overkill but seems like not many agree with 7500...)
The main reason I thought of this idea was because I was tired of artillery killing my infantry... if the artillery can hit a hidden spy it completely defeats the point of the unit IMO...








