so what i found was a total of 6 symbols so far.
2 chinese dogs
1. near 2 eleveators on top of roof
2. near the power box for obelisk tower.
1 outside of the 1st door you can open
2. to the left of the stairway on the roof (if looking at the stairs)
4 chinese symbols which say lucky (step sister is chinese) each say the same thing
1. outside 1st door able to be opened
2. after drop off near transmission tower
3. on elevator in the corner of the building (corner the dragons tail points to)
4. elevator nearest to power switch
(there may be one on top of quick revive, need to check that asap)