On my second walkthrough (2nd to last mission) and I have still to find the SCAR gauss attachment. Having gotten so far through it, I believe I have missed the chance to acquire it.

My attempts to find a list of weapons & attachments and where found has been frustrating (remember seeing something related when doing a search for something else). If someone knows what and/or where I need to look in the SP or knows of an online list, I would appreciate it.


EDIT: I am an idiot. Found out what where is located after a bit more search fu and broadening my parameters. Man, do I feel stupid the last couple days. I blame work.