Something like this is useful too
Using this script instead of the random start map plugins
Spoiler
PHP Code:
:loop
set num=%random%
if /i %num% GTR 14 goto loop
if /i %num% LSS 1 goto loop
goto finish
:finish
cls
IF %num%==1 set map=c1m1_hotel
IF %num%==2 set map=c2m1_highway
IF %num%==3 set map=c3m1_plankcountry
IF %num%==4 set map=c4m1_milltown_a
IF %num%==5 set map=c5m1_waterfront
IF %num%==6 set map=c6m1_riverbank
IF %num%==7 set map=c7m1_docks
IF %num%==8 set map=c8m1_apartment
IF %num%==9 set map=c9m1_alleys
IF %num%==10 set map=c10m1_caves
IF %num%==11 set map=c11m1_greenhouse
IF %num%==12 set map=c12m1_hilltop
IF %num%==13 set map=c13m1_alpinecreek
IF %num%==14 set map=c14m1_junkyard
set runcmd=F:\L4D2_DS2000\srcds.exe -console -game left4dead2 -port 27087120 -nocrashdialog -maxplayers 4 +map %map%