Some Muslim cleric was suggesting that the Arabian Sea may now become the “Martyr’s Sea” and the beaches be a place of pilgrimage.
A quarter million is much more believable - looking at the exterior picture of it in the news article makes it look very shabby, but culturally it is built normally for the area. The structure is built more ‘looking in on itself’ than outside. It is built for the people living there, not for people looking at it while walking past.
And yes the inside looks crappy, but as was pointed out there were a fair number of people living there, not many women to do the housekeeping, and the SEALS just romped through with extreme prejudice.
If I were the head of the Evil Empire of Terror, I would have spent my money a bit differently. Go for the walls, with the concertina wire on top. I would actually have gone for a 1 storey building, with a basement and a sub basement that had the entrance conceiled. I would have put my sleeping quarters and the operations office in the hidden sub basement, had what looked like my regular sleeping quarters and operations center in the regular basement to give people something to trash.
And I would not have built it near the damned military academy, I would have put it further away, perhaps near a nice factory that I built as a cover for how I was making my income.
[actually there would be a normal family living in the house above me to camoflage my being there …he would be the manager for that factory.
I’d announce that he was buried in the Marianna’s Trench… and no good ever came from visiting there after the 1960’s.
I doubt you’d be any more successful, the Military has a pretty thick playbook, and a pretty thick wallet.
But I could go for a stealth sub…yeah, that’s MY lair. 
There were clever use of fortification. The property was cut into a number of courtyards. A force coming through the walls would have to choose the right wall to blast to get to the cream-filled center. The largest courtyard looked to have trellises for vines. They should have planted them years ago, but such a simple expedient complicates things for intruders. Many plants make for great barbed wire and I am surprise the site was not covered with them.
The driveway incorporated a sally port. Vehicles could marshal there on their way out or pull in quickly and make sure they were not followed.
The walls were quite thick, but not thick enough to stop a determined sapper. No wall is that thick.
The tunnel to a pump house or some other out building is a good idea. Dummy antennas would have made a helicopter approach more difficult. Dummy interior and exterior doors would have been nice too.
A volcano on top would have increased prestige, but at the price of increased attention.
My guess is they knew they were screwed if discovered given the forces they’d potentially face and the main intention of walls was to reduce observation.
Otara
Yes, the guns and walls worked for about three minutes, the stealth worked for a couple of years.
The thing about a raid is you take your most highly-trained commandoes and pit them against a bunch of sleepy people in their bunny slippers and people too slow-witted to get out of guard duty. Done right, they never stand a chance.
I fell in love with the open floor plan, which would be ideal for entertaining.