This level is pretty easy to do, unless you're gunning for Silent assassin. Before we start, there are two things you should know:
-The first objective to meet up with the contact at the first agency drop-point is not neccesary, you can ignore this and go straight for Agent Smith's location right away. This won't cause any problems. You can also go here at any later point in time.
-There is a man with a purple turban and sunglasses marked as a civilian who'll run to you and eventually attack you. He's not actually a civilian, but it is recommended to avoid him if possible.
Meeting Agent Smith[]
First, go to your contact. He'll tell you where the exit is. After you meet him, Agent Smith's location will be marked on the map as a second agency drop-point. You may skip this point as both Agent Smith and the exit can be found without his help and the game doesn't fuzz about skipping this point. It is recommended that you do NOT take the SP12, you cannot holster it and will be attacked on sight. If you want the gun, you might be able to get to the exit point unseen once you're done with the objectives. There is also a second SP12 hidden north of the pick-up point.
After the cutscene, the location of Agent Smith will appear on the map. This will be a randomly generated location. Go there, Agent smith will panick and shoot in the air with his Deagle before starting the cutscene, this shouldn't alert anyone unless you're unlucky. It might be possible to avoid this by picking the lock of the back door, although this wasn't possible on v1.0. Smith will give you a camera and tell you to kill the two assassins lurking around looking for him. You'll have to take a picture of their corpses and show it to him before he'll leave his hide-out.(He won't actually leave it during the level.)
Killing the assassins[]
There are two assassins which will now appear on the map as hostile enemies. The third assassin marked as a civilian will appear now too, you won't have to photograph his dead body.
Let's start with the easy part: Kill the sniper. Walk by the building where the sniper is and stop when you are just ahead of him on the map. Get into the shop to your left/right. Thanks to the alleyways around the squares it is very easy to get near him unseen regardless of which direction you come from. Do not let the other assassins: Blue Cap or Purple Turban see you.
Sneak up the stairs and into the room where the sniper is. Fiberwire him and take his photograph. You can choose to take his R93 and shoot Blue cap, but this will make taking the picture more difficult. You can also take his uniform, but this won't fool either of the assassins and will make the other cultists a bit more suspicious (however it will allow you to carry a weapon openly without civilians or cultists instantly panicking). You might want to drag the body slightly back to the stairs to avoid panicking civilians.
There are two ways to kill Blue cap: -Come out and let Blue Cap see you. Lead him into a deserted spot and hide somewhere with a silenced pistol in hand. Blue Cap will turn back. Shoot him and photograph his body.
The second way is to lure him to one of the markets, until you're hidden from everyone's view but the assassin. Take out any weapon, so that he comes after you. Hide behind the staircase so that he'll be forced to engage in a melee fight and as soon as he comes closer to you, stab him. When he falls, a civilian may see him, in that case, just drag him up the stairs, so that guards don't find him and you don't get an alert.
In the first way there will be no close encounter but a shot fired. And in the second way there will be a close encounter but no shot fired if you do it right.
Finish the mission[]
Get back to Agent Smith. Wait around for some time - it is possible that Purple Turban comes to kill him, wait and kill Purple Turban before he gets the chance. If he kills Smith, it's game over. It is possible for this not to happen, and necessary if you want a Silent Assassin rating. So try to run away to the exit point as quickly as possible.
Now go to your exit. Enter the shop QUICKLY - a sniper is watching the door. The exit is behind a carpet against a wall. Avoid killing them as it's not required.
Note: Purple turban assassin does not count towards the silent assassin rating, you can kill him without repercussions, just wait for him if he spots you and stab him with a combat knife as soon as he looks in the other direction. Do it immediately or you will get a close encounter.
If you bring your silenced pistol and work fast, it is possible to get a professional rating by running around and shooting cultists in the back of the head whenever they are in the alleyways. Due to the ample cover and ability to hide whenever people check on their fallen collegues, you can kill them all before people even get alarmed. (normal mode) Do this before talking to Agent Smith and you can prevent Purple Turban and Blue cap being a problem because they won't have any back-up.