You can be successful with acne, as these ladies have pointed out.
However, if you have whiteheads at recruitment time, I would really suggest popping them (correctly, of course, so that it doesn't lead to scarring). I personally find mega whiteheads distracting when I'm talking to someone and can't stop staring, no matter how much I tell myself to stop. You really don't want anything distracting girls from getting to know you!