I did kick a guy earlier who may have been you. Don't remember the GT though, but he was like N7 20 or something using vanilla Human Adept. He started putting level 3 Warp Rounds on and I thought it might be an alt, but I took the safe option and kicked because his primary was a Predator V with only 1 mod.
That was indeed me, and the second time

. I decided to only level up the Adepts and sentinels for now, as they had the most kits that could get by on their powers alone. Troll store has sensed this, and has given me only an SMG scope. For the pistols I have a high caliber barrel, cranial trauma mod and a scope, so one I don't want to use and another 2 I can't use together. I don't see it as too much of a problem for my human adept.
I though about messaging you to say "look closely at my name" but figured you might not recognise my normal GT well enough for that to work. Take a look on your recently played list for something relating to "Rusty"
Skelly and I kicked a low N7 using a Destroyer/Adas yesterday. Were you trying to missile glitch in my lobby!? 
There was a also a low N7 Mattock using Engineer that was pretty good that I assumed was an alt account. I was busy getting wrecked by Scions in that game as a Warlord on London, then Skelly got me with a Possessed Abomb I missed like 4 headbutts on and fed me to a crab after that on extraction. If that person is here, good game to you! (Don't remember the gamertag, sorry)
Wasn't the first one, and can't take credit for the second as I haven't used any engineers yet. It's kinda 50:50 whether a low N7 will be an alt these days.