I haven't been able to play the game yet but one point I might not have read here is quite a few long range if not all the moves for an engineer seem to be mobile where other long range class's have to stand still and in a raid environment with lots of telegraphs forcing you to move I can see why carbine makes that 5% difference. Not to mention if a dps engineer is able to off tank a small amount of ads to help a group of people in the raid. One question I was concerned about is if the engineer gets boring, the only two moves I generally see streamers use it that very long range electric charge move (forgive me I don't know the name) and a move that seems to look like a aoe shot gun ability that shoots about 3-4 times. This could also be because I haven't seen an engineer above level 25. Also if any of this is hard to read I apologize as I'm writing from my phone at work.