Escalations are unusual in that they feature specific constraints, such as specific uniforms that must be worn, or specific methods of assassination. Paris features 17 escalations, Sapienza has 9, and the other missions have some as well. Escalation missions remix the maps, giving players new targets to complete in the same maps. Replayability through escalations, contracts, challenges, and masteries Once the main level and objective is complete, players can move on to escalation missions or player-created contracts.