Attachments are scaled to the scaling of the unit they are attached to, provided you tick the "scale attachments" (or something to that effect, it's under the "art" fields near the top) field. IE, bigger unit = bigger attachment.
Other than this, I don't think there's another way to do this unless you make a unit with the model and scale that to what you want, then make a trigger to get the fake model to follow the "attached" unit.
Or just edit the attachment model.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory
I will be AFK for a couple of days you guys hold down the fort while I am gone. I will be checking in on my phone but that will severly limit me. Be back saturday!
I just got to watch the video because even though I was there I was trying to work out tech problems with the chat since I was the social media guy so I was distracted but check it out guys the video is super fucking great!