(3.17) Counter espionage mission fails at 100%.

[Minor Annoyance]

I've always seen counter espionage missions with 100% success rate, but I recently ran that mission with 100% and it failed. I've assumed that counter espionage automatically had 100% success rate because I've always seen that, so either the bug was that it didn't have 100% when it should, or it displayed 100% when it shouldn't.