"My name is Ozymandias, king of kings: / Look on my works, ye Mighty, and despair!"
Habeo in animo vivere in perpetuum aut mori dum conor.
Only if the country you control is adjacent to your opponent's super power, I believe? Not for ones adjacent to your own super power.
Yes, this is correct.
As an example, if I (USSR) have Cuba and Mexico and US has Panama and Costa Rica and Central America Scoring comes out, I would score 3 points (2 for battleground countries and 2 for countries adjacent to the opposing superpower minus 1 for opposing battleground).