Ok, so I failed the mission where Fox is supposed to be rescued. Do I have to safely rescue him and take the information back to Sid so I can progress through the story? I can't seem to get any new main mission from Sid, only some random ones.
I have tried to go through all 3 exits in Cordon and can not proceed further for landslides. Should I start a new game or what? Even on easy it is hard to protect Fox.
Do I walk in there and try to talk to the faction that has him hostage or what? I am sure they will kill me but who knows?
EDIT: I restarted a new game and figured it out. I saw they were enemy's first and shot them on sight. I wasn't supposed to do that obviously.
All is fine and working now.