[Murph]

James, are you using QMB Plus? If so you need to have the map listed in the "[quick]" list in your game's config.ini. You also will need to have the appropriate missions in your game's Missions/Quick folder.
The missions are available for download in the missions section of this site.
When you install the mission files make a note of which version of the map the mission is using- this is the name you must use in your config.ini in order for it to work.
For example, mine looks like this;
[quick]
Custom0=NWEurope
Custom1=MTO
Custom2=Bessarabia
Custom3=Balaton
Custom4=Singapore
Custom5=Slot
Custom6=JV69_LYBIA_N-E
Custom7=SlotLate
Custom8=LAL_Okinawa
Custom9=vol_ItalyAfricaGreece
Custom10=The_Slot_1-44
Custom11=Channel
Custom12=LAL_Normandie-44
Custom13=ChannelAutE
Custom14=ChannelAutL
Custom15=V1_Summer_1944
Custom16=zip_Alpen
Best of luck.