what suggestion do yo uhave about the castel doors if building on double heights ?? surely they will look weird and a weak spot .. any ideas , suggestions 
? i was thinking 3 point connectors either side of classic steck double castle doors and going on the back a door ( as in my medieval city internal wall - see video) and run a wall on top of that door.. any ideas/ suggestions ?? 
Great to see the set up G., even if the camera was a little shaky. I liked your choice of music too.
Castle gates are ALWAYS a weak spot, usually the weakest spot in the whole defence, that is unavoidable. Wood, even reinforced wiyth iron bars, is weaker than stone, and the gate has to be easily approchable by foot, wagon and horse, when no other part of the wall does (e.g. see Edinburgh Castle, built on top of an old Volcano).
A massive gatehouse spanning the gates would allow defenders to drop nasty things down onto any attackers who got beyond the first gate - a second gate beyond holding the unfortunates in the killing ground like fish in a barrel. You might deliberately allow attackers to get past a first false defense, then drop a portcullis behind them and get on with the killing.
In Steck terms you should be able to carry a wall right across above the gateway, even if it is hanging unsupported. Have arrowslits in the walls so defenders can shoot down.
Another common feature would be a postern gate, a one-man width gate through which defenders could sally forth unnoticed and attack the beseigers from behind. A postern gate is very easy to include and adds a nice touch.
