I'm quite excited about R3-A2 on a Y-Wing with an Ion Cannon Turret.
In the opening engagement, probably at range two, you fire your Ion Cannon into a target that is within your arc (hopefully with the benefit of a TL). Use R3-A2 to then assign a stress token to both of you and then work out the attack. So long as you get one hit through, they will be stressed and Ioned so they will have to go one forward and can't barrel roll, boost, evade etc. Now you can follow two options, either keep hitting the same target until it is dead, possibly assigning more stress to it as well in case you miss so that it won't be able to get away easily and will take several turns of green maneuvers to clear, or you can stay stress free, or you can hit it up 2-3 times and then focus on a new target whilst your previous target has to limp around clearing stress for several turns.
You don't even need it to be a good pilot in the Y-Wing either.
I like the idea of having another Gold take over the job of keeping that ship locked down, and have the R3-A2 guy move to a new target. Seems like a great control list.