My map is too dark

I have been trying to figure this out for a while; I am working on a map and put together a bunch of the Tim's Aset war_zone map effects in to a flat map. Everything looks great except it is super dark, like freaking Doom3. The character looks completely black, look image below

How can I adjust the lightning in the map to make it brighter and also how do I change the position of this light spot?

I was also thinking since it is so darn dark are there any duct tape mods? (a flash light attached to the gun)