Feral Clown, on 27 August 2019 - 08:36 PM, said:
Velocity is not really an issue with racs though.
I agree that velocity is probably the least significant quirk of those listed but even with its non-convergence spread being very good (on par with the SHD-2H) the HBK-4G's larger velocity quirk allows it to keep its targeting reticule on the enemy mech at a further distance without having to lead the target which allows all three weapons to retain convergence and hit the same point.
The range quirk takes the RAC2s well past 600m for full damage, the armour and structure quirks means it'll take about 90 points of damage to get through the right torso (or more with all the survival nodes) and the crit reduction means the RAC2s are likely going to be operational until you run out of ammo or die.
I've theorycrafted HBK-4G builds with a 200LFE, 210XL, and 225XL and all seem a bit slow but viable (should be fast enough with proper positioning). I haven't bothered to take my HBK-4G out in a match with RAC2s but it'd probably be a very different play style to the mech's standard AC20 build.