Save Citizen

Save Citizen missions are optional missions in which Altaïr saves a helpless peasant who is being harassed, taunted, and shoved by guards. The guards are accusing them of crimes they most likely did not commit and they are threatening to hurt them. If Altaïr saves the citizen by killing the guards, he will unlock a group of either Vigilantes or Scholars who will permanently remain at that position and they can aid him in his adventures.

There are usually anywhere between three to five guards around the citizen. Two are in the process of actively shaking the citizen down while the remaining guards stand as lookouts. These lookouts will push Altaïr away if he gets too close.

Engaging the guards
How you go about killing the guards does not matter. The player may charge in, sword at the ready, or the player may use low-profile assassinations (e.g. using the Hidden Blade or Throwing Knives) to pick off one or two of the guards before the remaining ones notice and engage the player.

If the player locks onto them and doesn't do anything for a few seconds, Altaïr will taunt them under his breath in arabic, causing the guards to immediately engage him.

The guards should not be difficult to kill, they are always low-level infantrymen. However, any number of guards of any rank who happen to pass by as Altaïr is saving the citizen will join the fight.



Reward
Once all of the guards (including any other ones that have joined the fight) are killed, talk to the citizen you just saved. They'll thank you profusely, and as a reward, a group of either Vigilantes or Scholars will permanently remain at the location the player saved the citizen.

Assassin's Creed: Brotherhood
In Assassin's Creed: Brotherhood, citizens saved by Ezio Auditore da Firenze will be given the opportunity to join the Assassins and fight for the freedom of Rome by breaking the corrupt and ruthless Borgia influence. The only way citizens can become assassins is when Ezio sends the saved citizen a random mission to gain experience. A citizen who succeds his/her mission becomes an assassin. Those who failed their missions have died

Trivia

 * As Altaïr approaches Damascus for the first time in the game, there will be a citizen to be saved near market outside the main gates. This one Save Citizen is mandatory - it must be done and cannot be skipped. It is the only mandatory Save Citizen mission in the game.
 * Save Citizen missions are only available in the three cities - Damascus, Acre, and Jerusalem.
 * In Damascus and Jerusalem, to know what kind of Saracens that you have to kill, the Saracens' clothing is usually dyed gray.