Resident Evil 5/Chapter 3-2

Execution Grounds
Go down from where you start and move forward to trigger an enemy attack. Kill all of the enemies and have yourself or your partner turn the crank while you/your partner gets on the raft. Dodge the crocodiles by pressing a mentioned button as quickly as possible, and you'll make it to the other side. Press the switch to open up the bridge and cross it. Keep following the path in the tunnel and eventually you'll reach an area with two Tricell tents pitched. If they fund the BSAA, what are they doing so close to the oil fields? Watch out for the snakes in the grass when collecting gold. When you're ready to move on, go to the door of the oil field and open it up with your partner.

Oil Field
There will be three switches to turn once you get inside. Climb up the ladder and then climb up the other ladder and you'll see the first switch. Turn it to take out the fire on a path once you've gotten rid of all the enemies. This will trigger another enemy attack. Get the Majini out of your way and climb up the ladder. Pull the lever and you'll be able to ride the zip-line. Once you get to the other side, a Chainsaw Majini will come for you. Once you get him out of the way, turn the switch to extinguish the fire blocking your path to Irving. There's still another switch to turn to get rid of all the fire though. Jump down and climb the ladder once more, but this time follow the path up the curved stairs. Send your ride over and go across to the other side. Turn the switch to get your path open and open the door to trigger the coming of another Chainsaw Majini. Once he's defeated, go down the path he was blocking, climb up the ladder, and go to the newly-opened path. Get rid of the Majini here, jump down, and open the door with your partner.

To the Docks
Irving doesn't seem to be behind the door, but someone else is - it's Josh, the sole survivor of Delta Team. Access to the elevator seems to be blocked, but luckily for you, Josh can disable the blocking of the elevator. You and your partner will have to cover him though. Watch out for the Majini coming out on the left side of him. Once he says tells you not to let your guard down, Majini will come from both left and right windows, including two Big Man Majini. Josh will eventually get the elevator open and the three of you can ride it up. Climb up the ladder, jump down, and climb up another ladder to find another blocked door. Josh can disable the lock on this one too, but it should take some time. Cover him while you can against the incoming Majini (along with another Chainsaw Majini) until he gets that door unlocked. When he does, open it up and get to the docks.

The Escape
You'll part ways with Josh here, but only temporarily. Follow the path to the large door and open it up with your partner. Go to the path on the right and you'll be attacked by Majini. Again, Josh is here to help out. He got you a boat, and all you have to do is get to the other side of the docks before the big explosion. Run back to where you were, shoot the lock off the door, and then shoot the traps to make it to the boat and end the chapter.