Danger Close v2 questions

[Striker]

Hi. I'm looking at finally playing Danger Closev2 and while reading the charts I have some questions. Besides getting my vietnam and moderns on the table I plan on running some convention games that are narrative-rpg lite kind of game.  The intent is to introduce rules and have players shoot it up and not worry so much about winning a game. Thanks in advance.

1. The +1 category has "fired at by small arms" and "enemy moves within 6 inches", is that +1 only once or +1 for each occurrance? ex. being shot at 3 times (let's say no wounds) would that be +3 stress when they roll when activating?

2. What does a "light wound" do to a figure?

3. Units gain stress tokens from wounds and those are the only stress that carries over each activation, adding to any stress tokens acquired by actions like being shot at?