Fallen Ep1 Help

[Somerandomdude]

Well, I'm enjoying this game and want to get a bit further before doing a review. And I can be kinda retarded when it comes to puzzles in gaming... so yeah... I'm kinda stuck. A couple of things really.

1. What's that second thing you get out of the bag in the shower room?

2. How do you open the first aid box in the shower room?

3. How do I turn on the security cameras?

4. How do you switch weapons? I already have the wrench, I just don't know how to equip it...