Agree with DarkInferno. It seems you need more gravity for the level. And the lightning too, You can just set lighting effect as a bright sky when you're in a room(so it still can be seen trough windows). But some barrel still can be on fire I guess if it still has some oil left after the explosion...

@ DarkInferno:
The conical light is actually a static light set in WED but surrounded by some invisible block on top of it. Or at least that I'll do to make my game like that.