Drakuru

Well theres a few weapons that actually got a Flashlight attachment. Glock 17 Remington 870 I'm not sure if any other weapons got a Flashlight on them.

The Error message got no impact on your game, I've had this pop up several times without losing items. I believe the error message comes from Arma 2 having a minor issue with the mod because some weapons is removed/Edited out from the game. (I'm NO tech expert). I've lost a few items due to other buggs, switching Servers after eating meat didn't register. Sometime when I had 3 Bullets left in my clip and it disappeared and sometimes my clip where full on next login. Placing a Item in a Bag without enough space would destroy an item.

You could use a program like "Teamspeak 3" Just for testing your laptop mic. It got a buld inn function that allows you to playback your own voice. Laptop mics are horrible in general and it might look stupid when you yell "FRIENDLY" in the living room.

Blood Restore rate: Bloodpack Full HP. Can food 200 Blood. Meat from animals cooked 800.

Well you could allways try to Download the Arma II Free Version. This should give you a few clues if your able to play. :D