I started with the island in the top left corner, you can also take the one in the lower left corner,
but don't take the ones in the right corners, because they don't have a river, and you will need it.
I prefer the Tycoons, because they can drill for oil and coal without needing a mine or a oil platform.

So before Keto arrives after 2:30 hours you should have an autonomous island, so you need:

• vegetables on your main island
  
• A second island for sugar (you need it later)
  
• As many Tcoon-Employees as possible
  
• At least one Tycoon-Engineer
  
• Once 150 Researchers.
  
• A labarotory
  
• A production of High-tech weapons and carbon
  
• An ammo-facility
  
• Functional Food production

Don't let the Lab assistans get access to Functional food or drinks until you stored enough of them to let them upgrade to Researchers (ca. 50t of each)

It's easier to achieve peace with the other factions (except Strindberg).
You can invest money in Hector or Sokov after having 60+ influence.
Save the game and get the highest investment on risky. If it was a bad run so try it again.
The most money I've lost were about 10k Credits and the most I've got 40k Credits.
Strindberg will declare war all the time so don't waste your money to get peace with him.
Buy the civil protection (the first action) for 60 min, and then every 60min again.
This will cost you 9k per hour. And don't upgrade warehouses to the third stage. They can be destroyed even if you have your protection from Strindberg.

When Keto arrives she will destroy all of your depots and ships.
You should have an autonomous island by now and when you had 150 Researchers once you can build mostly everything in the Lab, so you're prepared when your resources get low. Just get the items to get new resources from the Lab then.
I've build 8 Firebirds on my main island on 8 airports. It's better when you have some fleet space left.
Put your arc as far as possible from Keto's ship and buy a fleet at Rufus or Yana.
The ships will spawn close to your arc and Keto will send out their ships to destroy yours.
Try to let your ships drive away from her fleet and start the Firebirds. Let them fly to Keto's ship and destroy it with the special ability.

Return back with the few Firebirds which you still should have after the attack and go for another run to destroy Hector. (2 or 3 Firebirds should be enough.)
You can even destroy him without declaring war, so he will not attack your planes.

Now you finished Hector and Keto

You can now destroy your Firebirds and your High-tech weapons production.
Now you should build Choppers as much as you can.

Important:
When you go out for an attack be sure that you have enough anti-air defense araound your Ariports.
I've built 8 flaks to protect them, because when you lose your airport, then you lose all of the aircrafts on it, even when they are away and attack something.

(optional)
Because Strindberg took all other corner islands i attacked his top right island and after i destroyed it I took his armistice action (the second one).
I settled lots of Tycoon-Employees there to get a bigger fleet size.
And watch out for your income. Let your buildings fill up with employees and set the taxes to yellow.

Sokov is quite easy to eliminate. Just take your choppers (I had about 30) and destroy all his warehouses and depots. He only have 3 smaller and medium islands so it shouldn't be to hard. You can do it in one run so your choppers won't need to be refueled.
Be carfeful: Warehouses on the third stage have small anti-air missiles, so destroy them first.

For strindberg I had the same tactic as for sokov but with more Choppers (about 40).
Strindberg will build Anti-Aircraft defense so watch out for it.

If you destroyed all of Stringbergs depots and warehouses but he's still in the game then you forgot somewhere a building.

Destroying enemies ships is not necessary.

You need to destroy the Hydro-power-plant on the lower left island too.

Don't destroy Strindbergs Atomic power plant. Destroy the warehouse next to it.

Strindberg will attack your island when you attack him. Be prepared and store enough fish so your people won't be unhappy.

When you eliminated all enemies and then you go on with the next objectives:
You don't have to complete them at the same time.
Build a tycoon city and push the Executives populatin up to 5000. Then it can drop back to 3000 or so but the objective will be completed.


I hope this Guide will help you out a bit to get the mission done.
I'd be happy if you leave a like. ^^ (and write comment it if you have some questions or troubles)