what I have personally see in land (real firing polygon), that automatic launch and automatic guiders of missiles not used at all !
may be also proximity fuse is in manual mode ! (using K3 I think!)

Hmmm, strange...
... Hungarians were used the automatic launch with salvo at Ustka Poligon (in Poland) always.
nope

Hpasp
Free SAM Simulator, "Realistic to the Switch"
(U-2 over Sverdlovsk, B-52's over Hanoi, F-4 Phantoms over the Sinai, F-16's and the F-117A Stealth bomber over the Balkans.)
http://sites.google.com/site/samsimulator1972/home

Book from the author - Soviet Nuclear Weapons in Hungary 1961-1991
https://sites.google.com/view/nuclear-weapons-in-hungary/
thumbsup