Niggross
regarding the trigger guard, i am pretty sure all of the weapon used by them don't have a trigger guard (normal finger sized ones i mean) or it is retractable, cus they wouldn't be able to shoot even a heavy weapon cus the the trigger guard would disallow that. pre-war if it was retractable it makes sense as power armor unit seem to be part of every squadron and it would be pretty stupid to not allow them to use normal standard weapon in a pinch.
Thanks for the chapter on a good story. they're just lazy it be incredibly easy to modify the trigger guard by just removing it they don't do it because of Pride it makes them look primitive if they're using projectile weapons instead of energy base weapons except for the minigun they're allowed to have the minigun