Resident Evil 4/Chapter 5-1

Landing site
The chapter starts with a cutscene. Ada brings you to the island and takes off on her own. You try the communicator and this time Saddler responds, he knows Salazar is dead but considers it a small victory on your part.

You’re on the shore of the island. Follow the ledge into a cave, passing a bridge on the right. Climb the ledges at the end to collect two crates. One of these will have a new type of gem, the emerald. Go back and over the bridge. You can hear Ashley calling for help and a cutscene shows her being carried through a doorway when you turn the corner. (This is a continue point.)

Shoot out the searchlight to avoid being detected for the moment, then hop over the gap toward the building on the right; you will meet at least one parasite infected soldier, the main enemy for the island. They are a bit tougher than villagers and zealots, so you might want to step up your firepower, but otherwise fight them the same way. If you don't get the searchlight before hopping over the gap then a group of soldiers will attack right away.

Up ahead are several ruined building which give you plenty of places to find cover. Step forward a bit and a new enemy called J.J. appears. He's a very large soldier with a machine gun and can do plenty of damage if you're not prepared. But he's not that bad if you have appropriate firepower. Find cover to avoid his first attack, then toss a Flash Grenade to stun him and start blasting with your magnum until he goes down. The idea is to keep wounding him, especially in the head, enough so that he can’t get a bead on you. With a bit of practice you can carry this off with TMP or shotgun to save on Magnum Ammo. If you take too long about though, then you may be joined by other soldiers and that will complicate things. Collect his drop of 15000 PTAS.

More soldiers start appearing and this turns into something of a brawl. Fortunately they don't all appear at once so you don't have to deal with too many at the same time. Try climbing one of the ladders to the roofs of the buildings here or retreating to the cave where you started if they get to be too much.

When thing get quiet again look for items.
 * Handgun Ammo on boxes in front of the building on the right.
 * Magnum Ammo on the roof of the same building
 * Green Herb in the first building on the left
 * TMP Ammo in the second building on the left

To the east is a flight of stairs leading to the door where Ashley was taken. Check the door or one of the orange lights to either side to turn on a laser; it’s harmless. You need to solve a little puzzle to open it. Notice that the beam hits a reflector on top of one of the buildings. Follow the beam and climb the ladder to get to the reflector, then turn it until it hits another reflector on the right. The door opens so go through.

Grab the Shotgun Shells behind the sandbags, then follow the path but watch for a point where you have to do a saving move with a button combination.

Enter a small cave and get two barrel on the right. Next is a bridge into another cave; this one has soldiers in it though, including an archer. Toss a Flash Grenade to stop them from attacking for a moment if you have a spare.

Go to the end of the passage to find Shotgun Shells and a view of the crates you might have missed earlier. Then go up the ladder.

Note: Coming up you will meet a certain enemy which is impossible, or at least very difficult, to defeat without a rifle. So if you're low on Rifle Ammo then you need to be a bit stingy with it so you'll have enough when the time comes. The game does give you enough, but if you don't like searching high and low for items then you may miss it.

Cave system
You're now on the ledge above the previous area and there caves here that the soldiers are using for storage. To start, turn around and pick up the Emerald from the boxes.

Now proceed west and fight the soldier behind the sandbags on the left. Get the TMP Ammo behind him. Hop over the gap to the north and then into the window on the right. Defeat a few soldiers who notice you.

Explore the cave on the right, there are three branches. At the entrance get Rifle Ammo and at the end of the left branch get a Red Herb. Shoot the red barrel at the end of the central passage to open a new room. Go in and climb the platform to find a chest with the Golden Lynx. This is the last treasure which you need to assemble to get the best price. The right branch doens't giving you anything but a peek into the room with the treasure.

To the north are soldiers including archers and a soldier with dynamite. Your best bet probably to jump back out of the window and turn the corner. When the soldiers notice you then back up a bit and turn the corner again, slowly this time, and snipe each one as he comes into view. They may move around a bit so adapt when necessary. You can also use the crates here for cover if needed. There is a red barrel in the distance but you may want to save it for later. There are search lights above but shooting them doesn't do anything this time.

Pick up the Handgun Ammo on the right, then go left at the fork and follow the tunnel, watching out for a soldier waiting around a corner. Get to the cave on the other side of the bridge and use it as a defensive position to fight off remaining soldiers. The red barrel may help if it's still there.

There are Shotgun Shells and a Green Herb at the end of the cave. Exit and get more Shotgun Shells under a ledge a bit south of the bridge. More soldiers may appear once in a while so keep your eyes and ears open while exploring. They can appear anywhere that's not actually visible, for example at the end of a cave you've already cleared. There is a cart filled with explosive barrels at the top of the hill to the north in case you can find a use for it.

Get to the end of the path; the map says the door here is locked but it’s the world’s easiest puzzle to solve, just press the bright orange button on the right.

Follow the tunnel to find the Merchant and a typewriter. You can get the Island Treasure Map now. There is a better magnum, the Killer7, available now as well, so consider buying it if you haven’t invested much in the Broken Butterfly. Don't bother keeping any partially assembled treasures and pieces from the castle since anything still missing is beyond reach now.

Continue and check ahead for soldiers. Snipe the archer on a ledge to the right and defeat the others when they attack. Go through the door at the end.