Hey guys I Need some help with lighting for out side areas? I dunno how to make it so my outside is lit up but still half dark if you know what I mean?

And the other thing is some of my textures going underground are transparent is there a way to fix that?
 
Thanks for reading and hope I can get some help

In worldspawn settings (when you hit "N" with nothing selected), raise the ambient and sunlight values in order to lighten up the world. Your textures are transparent because you have them as blend textures without a regular texture behind it. Make sure the texture name doesn't have a _blend at the end of it, because it alone you will be able to see through it.

More info:
http://wiki.modsrepository.com/index.php/Call_of_Duty_5:_Worldspawn_Settings

Thanks guys help a lot!

Ok I have a new problem alright when I was first starting off making my map I didnt know what the worldspawn thing was so I deleted all the Kvps so I re wrote them all and now I get an error while editing it says

RENDERCOMMAND_WARN_SIZE (16384) reached

This started happening after I put the Kbps back in the worldspawrn
And now my 3d view is Buber laggy any way to fix this?