Hi there, I was just wondering for any of you who might know whether there are dogtags of the like that I've mentioned... Like tags that you unlock after a certain amount of kills for a weapon that depict the given weapon. Like a gauss dogtag after 1000 gauss kills or something? I saw a SCAR dogtag the other day and it just had me wondering... Anyone seen dogtags of any other weapons than the SCAR or know whether there are?

Yes.
If you complete ALL assessments for a certain weapon, you get a dog tag.
(I'm almost complete with my Grendel assessments, I just need a bunch more headshots)

If you look in the weapons category of skill assessments you will see weapons have one or two challenges tied to them. Complete these and you will unlock the respective dog tag. I have the C4, JAW, Frag and HMG weapon dog tags. I dont have any primary or secondaries as I prefer to switch weapons to maximize EXP gain.

If you complete the entire section of weapon assessments you will also be given a dog tag.

Cool, thanks. This'll be fun!