If you have a weapon with multiple ammo slots, only actions that use the primary ammo type show up in Ufopaedia. In the attached picture the weapon has a snap shot, aimed shot and an auto shot, but the autoshot is not displayed because it uses a secondary ammo slot.
The simple request is that all valid shot types for a weapon are displayed regardless of what ammo slot they use.
The greedier request would be some kind of 'showUfopaedia: true/false' option to determine if a shot type is displayed.
Ex: confAimed:
ammoSlot: 0
name: STR_ARCING_SHOT
shortName: STR_ARCING_SHOT_SHORT
arcing: true
showUfopaedia: false