You can't tell me the place at right (where a tank guards the entrance to the lift to the Lambda Complex) is not the other side of the place at left (opposite the dam from Advanced Biological Research Lab).
All the water canals, pools, and machinery underneath the map at right where you emerge from, would make sense, as part of the water works associated with the hydroelectric dam.
This is to me the single most significant detail that challenges OpFor's canonicity.