23. Into the Light

Proceed to the ledge and reach the upper floor. Kill the two guards then proceed in clearing the area of enemies. Aside from a considerable number of enemies that will come storming in, there's also a brute that will join the fray. Use explosives or high powered weapons to easily and quickly dispatch the enemies. Continue killing enemies until you reach a door that can be breached. Break it open then kill the enemies inside.

Proceed to the next door and breach it again. There's an enemy with a riot shield so just aim for the explosive barrel to the right to kill him. Breach another door and you'll find a wide, hall with lots of enemies. You may want to let loose with your Overkill ability here to quickly dispatch the enemies and earn large points. Take note that reinforcements will appear from the nearby doors so don't get caught off guard. The last door to the north will have a group with a brute in it so be prepared when facing it.