I am not a strategist of IAF to decide on where to place my batteries and how much batteries of which system to be involved. What I did quote here is based on my observation and the facts which I have learned during my visits and interactions with people there.IAF augmenting its bases and landing ground have little do with how the S-400 will be deployed. The main point here is no matter how mobile these S-400 SAMs are, a regiment or battery or battalion will be assigned a dedicated area to work with, with-in this area they will have some mobility. If you think every time the enemy pops up, a battery will relocate anything more than 10's of KM, you are wrong, the logistics involved would make it counter productive.
Secondly, the kind of saturation you speak off can't be done alone with S-400, as we know 12 regiments will be acquired and they will form a formidable set of layers. off course, this won't deter the enemy from using known blind spots or other sneak tactics but its not the job of the S-400 to cover blind spots. Blind spots are best suited to be handled by Akash, Spyder ADS and Pantsir S-1.
S-400's prime usefulness would be to counter the enemy's SRBMs, long range cruise missiles, AWACS, Transports, High altitude bombers, fighters etc. with-in their own airspace, it is meant to prevent the enemy from getting close enough to bite, incase they slip through, there will other layers to take care of them.
It isn't meant to deal with very low level, highly maneuvering targets. Hence every S-400 regiment has plenty of Pantsir-S1s to cover the area to keep an eye on blind spots. Pantsir with its twin autocannons and 12 ready to fire missiles will be hidden exactly in such blind spots waiting for the enemy, they simply have to pop-up fire and scoot.
Moving the system through road in AP would be a logistical nightmare where to cross a 10 km of distance in a normal 4x4 takes you anywhere near 20 mins. But yeah, in Assam it would be fine.
I do agree with you point of multiple layer of system for effective deterrence. But if you want to nip the prob in bud, then you got to have a healthy amount of VLRSAM so that nothing could pop up its head anywhere in horizon.
I do whole heatedly agree with your third pint.
As far as shoot and scoot is concerned, I would not say impossible in the given terrain, but yeah it would be pretty much hard
I am sure that you might not have visited AP. Unless you see for yourself you would not understand why I made this point. I could only suggest you to have a nice tour plan for Tawang once. The best time I like to visit the place is in height of winter to enjoy the snowfall :biggrin2:.Not true, a ground offensive in this day without fighters against an enemy like India is doomed to fail from the start. Hence PLAAF has been ramping up its activities in TAR. There is no way they have any success without fighters backing up to the ground offensive.
But the base line, that you do need more then 1 regiment to cover the whole East is what I think you might have agreed by now.