- Find a Radio and contact OSS control (Campaign only)
- Sabotage underground shelter
- Rendezvous with the Rangers at the sewer exit
- Survive upper tunnel ambush
- Sabotage the generator
- Uncover the scientist interrogation transcripts
- Retrieve the POW list
Look out for the blue safe to get the transcripts and the POW list. Also find a generator in the centre to blow up using the explosives.
When you get to the last part of the area, take a step at a time and watch out for a German soldier with a bazooka as he'll temporarily stop you in your tracks as he's above the tunnel exit of the area.