The island has been invaded reasons not clear, without wanting to provoke direct confrontation yet you are sent in to locate the whereabouts of 2 researchers previously working on the island.

If like me you prefer to go where the action is then it's up the bank and take out the sniper and guard nearby first using bushes and rocks for cover. Not wishing to teach grandma to suck eggs clean up as much as you can see near the aircraft using the rocks as cover before attempting to approach it. This part can be hard if your too keen, use \save_game if your having problems getting to the first objective, I did a lot in testing, there are lots of saves further on in game so won't need to there. Watch for hidden mercs.

Once at rear of the Armoury guys inside can be frustrating to hit. Suggest you look side on and take out one hidden beside the door with head shots, you could then run in straight for the health and have it out with the one left face to face. In here you want that mp5u it comes in useful later.

Leave the armoury, don't run into the open remain at the door and use sniper to take out all you can see. When you run out of sniper ammo use mp5u has good zoom and high accuracy. Get to second objective cleaning up as you go.

This island is pretty much done after you get the notes. Grab a vehicle and follow the radar. Cross the shallows and on the other side be careful to get to site 1. If you have trouble go right around the beach with stealth and try to draw them to you, make use of the trees for cover.

Grab ammo etc, get updated and go for Site 2. Here you will find a group of pathological grenade throwers. Here the mp5u will show it's limitations and you may want one of their AG36 as soon as you can lay your hand on one. There's some more pickup notes here you need to locate before carrying on, use the radar to locate it. There are some pickups at the top of the tower.

The next bit IS tricky. Have a strategy. This is how I do it. You get a savepoint then Gunship comes over fast drops off mercs and has a go at you. Attempts to stay in the open are usually doomed, so behind you go for the gap between big rock and concrete tower, lie down and start plugging, get the ones coming on strong, before trying to finish the Gunship that will probably circle behind you. An alternative approach is to climb the tower and use AG36 grenades to take out the Gunship.

That done you can cross to third island where you have a hostage situation to rescue Val who is playing the Doctor's research assistant (thank you Val). Here you will have to be fast use the mp5u since it has a large clip. This is how I do it. Creep up at an angle to avoid detection by Hostile in outer room, once you see him lob a few grenades in at him, don't use your gun you don't want to keep reloading there is no time. Some mysterious voice shouts GO, run through to main area taking out the four hostiles rapidly with one clip, headshots, keep moving go in a circle, get up close you don't want to hit exploding barrels, the hostage is behind the container, if you try to approach before taking out the other 4 you will be shot in the back of the head. If your clip is low you will have time to reload when approaching the 'killer' behind the container, if you are too slow .... If you make it quick headshots and your hostage is safe.

A bit further on you find some ammo and Rocket Launcher (I think you need this) then the awful truth. Colonel Kurtz whoops I mean Curtis is behind this whole affair. From here on your mission is revenge. Revenge you will find hard to get unless you take that keycard. Up the steps and from here on I think I will leave it up to you since there must be a myriad of strategies and it is basically fighting your way through the village to blow up the ammo dump, which conviently has the stuff there to do it with then to the radio towers to get Curtis.

I noticed when I last played this version that the guy on the second radio tower for some reason became invincible. If this happens it's not an invincible Curtis just a bug (something new always appears out of the blue on every export!) I went up there and blasted him clean off with a shotgun., the best weapon for the Radio towers bit if you picked it up earlier. Dropping smoke grenades down hatches might help if you need it.

The endgame I added was just something I created for myself to play to get it out of my system (!!) and decided it could fit onto the end of the story. It is possible to do it on difficult if you remain on the main deck for the first few and then retreat to the superstructure cabin. I have never done it on difficult staying on the main deck but have come very close so must be possible.