Greetings fellow survivors!

I have came up with an efficient house for hunting the damn mennace flying over your precious island. I won't be taking much time, let's get building. first you need is a bit of a free and flat spot. 6x6 square is more then enough (you can do it with 5x5 too safefly ). Lets build it up till you reach the 2nd floor. Dont forget to turn it into the best grade you can make it. The whole thing will take a few thousand of your resources so it's better for modded server (loners) or you need a team.

After you are done making it sturdy (dont forget to leave space for repairs later) you can climb top and start placing the windows on the outer layer. Place 1 layer wall inside to protect the core (this is important!) and be sure to place 1 doorway (pref. double) on each side of it for entrance.

Repeat this for the next floor. Be sure to build the stairway up on to the center and to make it easy to go up and down.

On the next floor place walls on outer layer and inner too. Important too, since this will protect your head from falling explosives ;D
i place another floor with walls only for safety messures.

You will need a little tower on top of this, which will be the "signal" tower. as high as you can make it. Place a box there with a sniper rifle and you are set with the top.

I place a line of roofs outside for extra armor on the 1st floor (not blocking the view from windows and still giving extra hp)

Lastly you can place beds, boxes, repair benches inside. It won't protect you against from raids so dont place too much of your stuff there.
I don't place window bars or anything like that on windows since it blocks more of my own shots then the heli's.
Whenever the heli comes in for a rocket barrage, you just take shelter on either the otherside of the tower, or in the core.

There you have a tower....you have the HHH.
If you make it like me you will need about 10K hqm and more then 100K stone. But of course the metal walls are fine too.
This set up was tested against 3 heli at once just now. And can survive 3-4 heli without losing too much from its stability.

Thanks for readind and if you do make it and take a heli down with it, why dont you say a thanks for it? ;D

Good luck and Have fun
Best of wishes from
Slyfer and BEMcorp (Hungarian Heli Hunters)