>>717343209
shagohod was made during a time when ICBM's had to be in either massive launch facilities, meaning its a stationary target, or transported using huge vehicles that can't get around the siberian wilderness
like you are not getting picrel through anything undeveloped
shagohod was meant to get around this weakness, basically having a completely mobile launch system that can hit anywhere on earth, and has the ability to traverse terrain that other vehicles cannot
the soviets IRL actually solved this issue by eventually putting ICBM's on trains
https://en.wikipedia.org/wiki/RT-23_Molodets
rex was meant to launch a nuclear attack with no detectable launch, because satellites can easily pick up a launched missile