Siberia is no place for western designs, they are fragile, complex and hard to maintain. You need soviet weapons and system because only they can work in extreme siberian weather.
uhm....... and western systems on board ... let's say... norwegian ships don't work? and the weapons and ships which are stationed in alaska don't work?
hell, you build stuff for the job, yeah, some systems will not work in that environment, but it makes no sense to generalise like that.