Im no pro at this but this should help.
1st navigate to your mw3 folder. the path shoud be C:\Program Files (x86)\Steam\SteamApps\common\call of duty modern warfare 3.
Once there right click iw5mp_server.exe and choose send to desktop, then go to your desktop & right click on the shortcut you created & choose properties,
In the target field paste the text in red after the end quote add 1 space. +set sv_maprotation default +start_map_rotate +set dedicated 2
The target field should look like this when your done. "C:\Program Files (x86)\Steam\SteamApps\common\call of duty modern warfare 3\iw5mp_server.exe" +set sv_maprotation default +start_map_rotate +set dedicated 2
Apply & exit.
Now edit your server.cfg file found in mw3 admin folder. this file is for editing the server name & password etc.
PATH should be: C:\Program Files (x86)\Steam\SteamApps\common\call of duty modern warfare 3\admin
Next edit your default.dspl file found in mw3 admin folder (this file is for map rotation)
PATH should be: C:\Program Files (x86)\Steam\SteamApps\common\call of duty modern warfare 3\admin
at the bottom of the file you'll see something like
*,TDM_default,1
mp_alpha,DOM_default,1
mp_bootleg,DOM_default,1
*,TDEF_default,1000
mp_bravo,JUG_default,1
(if you play 1 gametype & like all the maps you really only need to use one of these lines)
*,TDM_default,1
(that line means that the server will be selecting random maps (like shuffle) and the gametype will be Team Death Match.)
Here's a few example of maplists.
*= random/all maps rotation
If you only like certain maps you can create your own maplist,
let's say you want to play domination & only like 3 of the maps you set it up like this.
mp_alpha,DOM_default,1
mp_dome,DOM_default,1
mp_seatown,DOM_default,1
This is a mixed gametype maplist of capture the flag & team death match using random/all maps for each gametype.
*,CTF_default,1
*,TDM_default,1
when your done open the shortcut you created on your desktop & your server console should open & start up the server.
