message: In Checkpoint 1 on the Buried Secrets level you have to open
the gate. This could be hard because there are turrets and Black Ops
troops firering at you. First, kill al the Black Ops troops. Second, run
towards the right turret. Turn right once you are next to the turret and
keep walking. You will see a ladder. Climb up it and walk across the
bridge. Third, jump down into the area where you see a computer. There
will be a Black Ops troop in there (if you didn't kill him before). Push
Square by the computer and run up the ramp behind you. By pressing the
computer you have unlocked the gate. Run through the gate for a new
check point and objective.