I had an idea for grenade launcher and shotgun attachments for the assault rifles. I figure you can make it so you would have to spend skill points to use, and it would take up your 3rd weapon slot. With this you could make more Skills and Jobs. We would just switch over to the attachment like you would switch to the big weapon. It would be nice to be able to have a shotgun and assault rifle equipped at the same time.

I don't know, its just a thought.