the opponent is very strong, so you can't take it lightly.
I must defeat you, damn enemy!
Person vs Nature
I've been staying for so long, so hungry. . . No, I have to hold on.
This shows person vs. Self conflict because He was struggling with his own heart, considering whether to smoke or not.
Person vs Society
This shows person vs. person conflict because This is a game between the sniper and the enemy. The sniper tries to outsmart and defeat the enemy sniper on the opposite roof. The sniper carefully planned a trick and successfully killed his enemy.
This shows person vs. nature conflict because He has to stay on the roof for half a day, facing the surrounding environment or danger, and stay on the roof for half a day without eating or drinking.
This shows person vs. society conflict because the sniper is fighting another enemy sniper in his society, that is the Republican Party.