the bridges in zion are all parallel across the diameter but in the sewer its just a mismatch of cylindrical pipe things
also note that its between shots of the vigilante and 3 squiddys bombing it, among others, remember all the other [future] shots are about the mission
yeh its not the same bit of the sewer in the game and its 'unchartered'
i was showing you the pipes
they must be big squiddys to fit across the radius of zion central (not perspective)