Vandal
Destroy eight headless Statues around the city. They are spread around the lower city, toward the southern portion of this map. The Statues take quite a few attacks unless you use your Shotgun or an explosive of some kind.
Look to the west of Citadel Plaza Base Camp. A headless Statue is only a few feet away. Destroy it with a Shotgun and move on.
Walk south from Citadel Plaza, through the destroyed gate. The stairs lead down to ground level in two directions. Turn left, walk halfway down the stairs, and trash another Statue.
If you turn right down the stairs we just mentioned, you find another one.
When you first zip line into the city, in the south, look for a Statue on a small raised platform. It’s near a Mural.
While standing on the upper rooftops above Citadel Plaza, look for a Statue that is on top of a building. Shoot it from a distance with your Rifle.
Walk a few feet northeast from Citadel Plaza Base Camp and destroy another Statue.
When leaving the third trebuchet, Lara runs across the rooftops above Citadel Plaza. On her right, there is a Statue that is standing at the edge of the roof.
Get onto the rooftops that are close to the main gate (from the lower city into the plaza). Stare up at the balcony above the gate. To the left is a Statue that you should snipe from long range to complete this challenge.
for Whom the Bell Tolls
Cut down five bells around the lower city by climbing up to their positions and slicing their lines with your Combat Knife. These are always a bit higher up in buildings, because having a bell at ground level is just a bit silly.
Take both zip lines all the way down into lower city. The upper floor of the building at the end of zip line two has a Bell.
Find a very tall tower in the northern part of lower city. Climb that to the top and cut down a Bell.
Destroy a metal barricade near the southern trebuchet. You can see it while standing on the weapon’s actual platform; just look to the west. Inside the small area you find a Bell.
Get onto the rooftops in the center of the lower city. This Bell is on top of a building and can be seen from far away if you’re up high enough.
The last bell is in a small upper floor of a building north of the initial zip lines. Use the rooftops nearby, of lower buildings, to jump into that area and cut down the Bell.
Banner Wars
Search for eight banners around the lower city. They’re attached to walls and are often slightly higher up. Use Fire Arrows to torch them from almost any distance.
On the eastern side of the lower city, you find a Banner on the n
orthern wall of a large building (on the outside of the structure).
Look at ground below, near the southern trebuchet. A Banner is hanging on the wall, well above eye level.
This one is also near the southern trebuchet. Walk north toward a nearby building and search its southern facing for the next Banner.
Get onto the rooftops along the western edge of the lower city. The northern face of an upper floor has a Banner to burn.
You can see this Banner from the ground or the rooftops. Go to the middle of the city and look at the western face of the building there until you find this target.
West from the last Banner, you find another one is almost the exact same position. It’s just on the eastern face of buildings one street over.
Go to the base of the northern gate’s stairs. Look on the bottom of the walls there for a Banner.
Go to the western wall of the lower city, not far from the trebuchet. Stand on piers that are on a small stretch of water, and look on the walls close by for the final Banner.
Burn Baby Burn
Using Trebuchets, Lara should light five Signal Fires that are high up in the city. They can’t be triggered with Fire Arrows, so this Challenge is only doable when you’re controlling the trebuchets.
Use the southern trebuchet to shoot at a Signal Fire that is left of the main gate.
To the right of the main gate is another Signal Fire, still accessible from the southern trebuchet.
Go almost all the way to the right to destroy the third Signal Fire with the southern trebuchet.
Almost all the way to the left is your fourth target. It’s close to the trebuchet, so don’t overshoot!
Go to the third trebuchet to get the final Signal Fire. This one is very hard to spot. It’s a tiny bit left of the burning trebuchet (number two). This screenshot should help considerably.