Recently I made the plunge, got a Membership and went A.S.P. to get those sweet perks. Went with LMG access for my Engineer and have been enjoying it pretty well. Used my second point to have a Shotgun secondary as well. However I dabbled a little with an Infil using the Gauss SPR. I would absolutely love that rifle with my Engineer. It beats the Hell out of the Battle Rifles and sounds amazing to fire to boot. Are all the ASP perks set in stone or subject to change/additions? I'd love to use Scout Rifles on other characters.
Well, the Gauss SPR is a sniper rifle not a scout rifle, so I don't think you'll be able to any time soon.