I just started playing this game and can't quite figure out what method to employ when playing single missions "Lone Wolf and Shadow Killer".
I can't determine if I'm suppose to avoid killing the AI on these type of missions. I appear to have a silienced weapon, but when I kill someone who looks to be isolated, I hear an alarm. I get the impression that these type of missions should be completed without killing the enemy. Is that true?
I was thinking of sitting a top a hill with a sniper rifle and picking off all opposition as a possible approach, but there doesn't appear to be a finite number of enemy AI. They just keep coming.
Any experienced players care to clue me in on the best tactics to use in these type scenarios?