for me , there are only a few missions which feels like thief (1/2). For example: Tears of St. Lucia Builder's Influence The Caduceus of St. Alban I played the other ones only for 5 minutes. When there is no thief feeling i never had end a mission. But i played thief 1 and 2 several times ( thief 1 about 10 times, i think that was the best game of the series), so my expectations are very specific to that. But i think also other missions are still very good if someone dont only search for "thieflike" missions or even never played thief. Most of the people who playes T3 first sai that this is the best part ( and i completly disagree with that). It is, as always, a point of view of different persons.