Attachment & Weapon Mods It seems like a rather large oversight to make a fairly comprehensive set of firearm rules and not include rules for adding attachments or modding your weapons. It surprisingly took a player at my playtesting group to point this out, which made me realize that I had totally missed it. I mean, no good battle rattle setup is complete without a bunch of heavy gizmos sticking off a rifle, just to weigh down an operator before some rando insurgent guns them down with a burned-out AKM produced in 1959 that has magically ended up being serviced in the modern day.