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Here are some official map worldspawn settings

CoD maps:

Mp_Carentan :
"minlightcolor" ".75 .84 1"
"diffusefraction" "0.45"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-45 210 0"
"suncolor" "1 .73 .42"
"sunlight" "1.5"
"_color" ".75 .84 1"
"ambient" ".2"

Mp_Brecourt :
"diffusefraction" "0.6"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-45 330 0"
"suncolor" "1 .73 .42"
"sunlight" "1.3"
"ambient" "0.18"
"_color" ".75 .84 1"
"northyaw" "90"

Mp_Chateau :
"northyaw" "270"
"diffusefraction" ".4"
"sunlight" ".7"
"sundiffusecolor" "14 21 32"
"suncolor" "33 43 53"
"sundirection" "-40 5 0"
"_color" "1.000000 0.980392 0.925490"
"ambient" ".12"

Mp_Depot :
"_color" "200 200 205"
"ambient" "0.16"
"sunlight" "1"
"suncolor" "100 100 210"
"sundirection" "-45 95 0"
"sundiffusecolor" "200 200 210"
"diffusefraction" "0.6"

Mp_Harbor :
"_color" "0.95 0.95 1.000000"
"sundirection" "-35 195 0"
"suncolor" "0.99 0.98 0.86"
"sunlight" "1.6"
"ambient" ".20"
"sundiffusecolor" "0.94 0.94 1.000000"
"diffusefraction" ".55"
"northyaw" "90"

Mp_Hurtgen :
"ambient" ".18"
"sunlight" "1"
"sundirection" "-60 95 0"
"sundiffusecolor" "0.962963 0.984127 1.000000"
"suncolor" "0.953642 0.980132 1.000000"
"diffusefraction" ".75"
"_color" ".953642 .980132 1"

Mp_Pavlov :
"northyaw" "90"
"_color" "100 105 105"
"ambient" "0.18"
"sundirection" "-30 40 0"
"diffusefraction" "0.65"
"sundiffusecolor" "100 100 100"
"suncolor" "100 100 105"
"sunlight" "0.95"

Mp_Powcamp :
"_color" "200 200 205"
"ambient" "0.16"
"sunlight" "1"
"suncolor" "100 100 210"
"sundirection" "-45 95 0"
"sundiffusecolor" "200 200 210"
"diffusefraction" "0.55"

Mp_Railyard :
"sundirection" "-40 225 0"
"suncolor" "100 100 105"
"sunlight" "1.3"
"sundiffusecolor" "100 100 100"
"diffusefraction" ".65"
"ambient" ".10"
"_color" "100 100 105"

Mp_Rocket :
_color" "1 1 1"
"ambient" ".18"
"diffusefraction" ".65"
"suncolor" "0.953642 0.980132 1.000000"
"sunfiffusecolor" "0.962963 0.984127 1.000000"
"sundirection" "-65 75 0"
"sunlight" "1"

Mp_Rocket :
"sundirection" "-45 110 0"
"sundiffusefraction" ".6"
"sundiffusecolor" ".8 .8 .78"
"suncolor" ".9 .9 .89"
"sunlight" "1"
"ambient" "0.18"

New CoD maps:

Mp_Tigertown
"ambient" ".06"
"diffusefraction" ".40"
"suncolor" "1 .73 .42"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-24 230 0"
"sunlight" "2"
"_color" "1.0 .57 .42"

Mp_Stalingrad:
"diffusefraction" ".65"
"suncolor" "100 100 105"
"ambient" ".12"
"_color" "100 105 105"
"sundirection" "-30 225 0"
"northyaw" "90"
}

Mp_Neuville:
"ambient" "0.18"
"_color" ".75 .84 1"
"sunlight" "1.5"
"suncolor" "1 .73 .42"
"sundirection" "-45 330 0"
"sundiffusecolor" ".75 .84 1"
"diffusefraction" "0.6"
"minlightcolor" "1 1 1"
"classname" "worldspawn"
"northyaw" "90"

Mp_Bocage
"diffusefraction" "0.6"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-45 330 0"
"suncolor" "1 .73 .42"
"sunlight" "1.3"
"ambient" "0.18"
"_color" ".75 .84 1"

CoD UO maps:

Mp_Kharkov:
"ambient" "0.1"
"_color" "1 1 1"
"sunlight" "1.1"
"suncolor" "0.8470 0.8 0.8470"
"sundiffusecolor" "1 1 1"
"diffusefraction" "0.35"
"sundirection" "-70 308 0"

Mp_Kursk:
"minlightcolor" ".75 .84 1"
"_color" ".75 .84 1"
"ambient" "0.2"
"diffusefraction" "0.45"
"suncolor" "1 .73 .42"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-32 37 0"
"sunlight" "1"

Mp_Ponyri:
"sunlight" "0.95"
"suncolor" "0.95 0.93 0.86"
"sundiffusecolor" "1.0 1.0 1.0"
"diffusefraction" "1"
"sundirection" "-32 37 0"
"ambient" "0.15"
"_color" "1 1 1"

Mp_Rhinevalley:
"minlight" ".01"
"minlightcolor" ".75 .84 1"
"_color" ".75 .84 1"
"ambient" "0.2"
"diffusefraction" "0.45"
"suncolor" "1 .73 .42"
"sundiffusecolor" ".75 .84 1"
"sundirection" "-45 210 0"
"sunlight" "1.5"

Mp_Sicily:
"_color" ".94 .94 1"
"ambient" ".125"
"diffusefraction" ".225"
"suncolor" "1 0.7647 0.3215"
"suncolor255" "255 209 137"
"sundiffusecolor" ".90 .90 1"
"sundirection" "-5 295 -2"
"sunlight" "1.8"

Mp_Stanjel:
"northyaw" "270"
"ambient" "0.12"
"sunlight" "1.5"
"suncolor" "1 .75 .65"
"sundirection" "-35 300 0"
"sundiffusecolor" ".75 .85 1"
"diffusefraction" "0.35"
"_color" "0.750000 0.60 0.50"

Mp_Arnhem:
"ambient" "0.15"
"_color" "1 1 1"
"sunlight" "1.7"
"suncolor" "1 0.8941 0.7254"
"sundirection" "-45 230 0"
"sundiffusecolor" ".5 .5 .5"
"diffusefraction" "0.3"

Mp_Berlin:
"northyaw" "270"
"sundiffusecolor" ".6 .6 .8"
"_color" "1 1 1"
"sunlight" ".75"
"sundirection" "-30 130 0"
"suncolor" "0.37 0.47 0.75"
"diffusefraction" "0.3"
"ambient" "0.175"

Mp_Cassino:
"sunlight" "2.5"
"ambient" ".1"
"_color" ".94 .94 1"
"sundirection" "-35 20.7541 -14.469"
"sundiffusecolor" ".90 .90 1"
"suncolor" "1.0 0.82 0.54"
"difusefraction" ".1"

Mp_Foy:
"minlightcolor" "1 1 1"
"minlight" ".2"
"ambient" "0.1"
"_color" "1 1 1"
"diffusefraction" "0.4"
"northyaw" "100"
"suncolor" ".72 .74 .76"
"sundiffusecolor" ".63 .71 .87"
"sundirection" "-60 220 0"
"sunlight" "1.0"

Mp_Italy:
"northyaw" "180"
"ambient" "0.1"
"_color" "1 1 1"
"diffusefraction" ".35"
"suncolor" "0.8980 0.6352 0.3882"
"sundiffusecolor" "0.4196 0.4078 0.4901"
"sundirection" "-15 235 0"
"sunlight" "1.2"

Thanks to Caretaker for updating.