I'm certainly not the most experienced when it comes to RTW but in absence of a better answer I will try to answer your question. First off, luckily we don't have to deal with supply ships, oilers, or amphibious operations at all or just very little in the case of amphibious operations at least. As ...

To answer your question regarding operational losses Varsovie, operational losses are represented in this game like in RTW 2 mostly likely. So if it uses the same system for operational losses as RTW 2 then reliability will impact the random operational losses that happen during every battle planes ...