Not sure how exactly it should work but right now i believe that one single ANTI-nuke can be overwhelmed by multiple (singular) nuke silos even if the charges of the anti => charges of nuke. It seems to me that the launch delay of the anti-volley sometimes (?) results in the of the last anti-nukes being fired too slowly compared to the parallel launch times of the nukes.
i.e. 10 nukes launch at the same time basically
1 anti launches 10 anti-nukes. The last 2-3 anti-nukes have a few seconds of delay and for some reason the miscalculates the vector.
The issue, i believe, is the induced delay the more antis are fired from the same silo. Seems to be 8+ ? is the breakpoint but i could be wrong.
Regardless of "how many antis from one anti-nuke are required to stack up enough delay to misfire" unless this is a feature, its a pretty darn harmful bug that should deffo be fixed.
If its a feature, it should be made more clear at which point a single anti breaks down and in any case, antis shouldnt fire warheads if they cant time the interception in the first place IMO.