Due to the firing rate of the smd, you can overwhelm it with volleys of nukes. The number it can shoot down is dependent on where the nuke target is in relation to the smd. It will still keep firing smds even if it is too late to hit the last nuke usually resulting in a wasted anti.

GOG does not sale to Russia at the moment. Any high quality VPN will work with Steam/GOG and you are able to buy the game for just a few cents or Turkish lira. hint Most known VPN provider will not work with Steam to trick the "I am from another country, sell me the other stuff from country XY", because Steam is not that stupid. There are a ton of guides on the internet, OP, you need to spend more effort into this. Also, there will be no guide on FAF how to dodge those restrictions, because this is not an advertisement platform for VPNs and neither a platform for shadyish tutorials. However, I can verify, that it takes literally like 3 minutes to make such Steam account to buy restricted games from other countries, when you just use 1 minute google. Thread closed, all important stuff to that topic was already said.