[SEE]

As far as I am aware you cannot select custom loadouts in QMB - there are a couple of workarounds however.

The simplest way of testing weapons loadouts is to simply create a mission using FMB and save the mission as many times as necessary using different loadouts that you have created and assigned using FMB.

Alternatively, create a custom version of a quick mission and use the 'save as' option giving your custom mission a name that you can recognise. Once saved you can move the custom mission from the 'Mission - quicks' folder into the Missions Single folder. These folders are in the 1cPublishing folder. You can then open the mission using FMB and select any of the weapons loadouts you have created for the ac you are using. You can save as many versions of the mission as you want using names that help you identify which loadouts a mission is using.

The only other method is to enter the weapons loadouts directly into the Mission file using 'notepad'. This is quick as it only involves copying the weapons loadout from the file which contains the loadout data into the mission file itself. There were threads that detailed how to do it. Ask if you need more info.