Hi, Im having some problems with terrains . it was working about last night but now i cant see anything except from those lines. I cannot see the textures on terrains in radiant however i can see the textures  in game. This is something unusual never happened before . Please help

This is what it looks like in radiant  (without selected)



With selected

I'm kind of struggling to add lights into the map . I know how to add lights/change radious/intensity but i cant get it to look good. So i was wondering if you guys could give me tips to do with  adding lights. Does the light grid need any kvps ? Help!!!
 Thanks

This is my first map. I have been working on this for about 1 year because i wanted to make something bigger and better than just a box map. This map is based on a real Academy in England . Im working hard and asking for help to make this map much better. Here something i have added:
This map will have:

-BO Perks
-Soul Chests (Trying to make the reward different than just a ray gun. HELP!!!)
-Buildables
- Secret Door
-Cod 4 Models
-Buyable Ending
-Different PackaPunch Texture
-UGX Juke Box
- Tom's Music Box (not yet added)
-Coop Load screen
-Some Multilayer Weapons
-Zombie Counter

Thats all for now. I am still learning (im a noob  i guess even pro's were noobs at some point ) Modding/Scripiting so i might be able to add something of my own.



\\\\\\\\\Credits//////////
ZombieMadness
Banskater33
BluntStuffy
Gamer 9294
Tom_Bmx
Alzan12
Quizz
ZK


---Special Thanks---
Entire UGX team
Entire ZombieModding Team








**********UPDATE*********** 16/09/14**************
I have made some changes to the map but ive decided to upload my load screen i made .



I am still working on this map to add detail and easter egg.. it would be great if anybody can help me with anything in the map.

More Pictures and trailer (maybe) to come soon

my map is quite big and i have used alot of textures to add details. now i tried adding some bo1 weapons but after adding 1 weapon i got this error ''Exceeded Limit of 2400 Image Assets'' so i decided to delete some images from my map in radient and it worked. However when i tried adding 3rd weapon i got the error again .
How do i get rid of this ''Exceeded Limit of 2400 Image Assets'' without deleting stuff from my map. HELP!