Checkpoint A. Go to the aqueduct when the level begins. While being chased by 
  the helicopter, look for the Mirror's Edge logo to the left. Jump over to the 
  left side, and go behind the blue and white pillars past the logo, immediately 
  before the drain first arches towards the right. A bag is behind the pillar.
  Checkpoint C. Run through the outside drain. Reach the top of the sewer area 
  with large pillars close to each other. There will be two snipers on the 
  right. Jump across from the platforms on the pillars, then jump to get the bag 
  on one of the walkways next to the wall.
  Checkpoint E. Use the pulley to raise yourself out of the circular drain area. 
  Go to the orange container next to the forklift in front of you. A bag is next 
  to the container to the right of the container.