So an appropriate Dark Age variant would have an HVAC10, Bombast Laser, and maybe an ELRM20?
An appropriate Dark Age variant would have a RAC/5 or keep the UAC/10 in the first place, give the Heavy PPC a Capacitor, and a Streak LRM-20.
I see a decent amount of mentioning the mismatching range bands, but that... doesn't actually seem to be the case here? Generally when I think "mismatched range bands" I think "overlapping minimum range" or "MLs/SRMs matched with LRMs" where you're punished for entering one group's optimum range by leaving the other's.
Here your objective is to get to exactly 3 hexes range, and then make the guy in front of you wish he'd picked a better place to be that day. At that point your MRM is at best range, your Light Gauss is one hex inside minimum (coincidentally matching the MRM's modifier), and your UAC/10 is well within optimum range. That, or you waddle up to about 15 hexes and get a C3 spotter up there to make things more interesting.
The weapons may not all match ranges like an elegantly tuned machine, but they shit out horrific amounts of damage (seriously, it's a 60+ damage heat-neutral alpha strike) and getting them to play nice with each other is not particularly difficult.
