So, what you are looking for looks something like this:
BF069 Mad Cat Mk IV 234 pts. (Mercenary)
with
VG-G-153 PPC Capacitor (Heavy 32 pts.)
or maybe
AOD-G-032 Armor Piercing (Heavy 44 pts.)
though, with a 10" range and three targets, I'd prefer this.
WS-G-170 Anti-Personnel (Heavy 34 pts.)
The energy weapon has a 14" range with two targets, so it is respectable. But you still need your favorite pilot, Improved Targeting SE, and a faction Pride that can enhance range values.
The good news is, it is listed as non-unique, so you can use as many as you have. The bad news is, it came as Prize Support near the last of what Wizkids offered for organized events. That can make them rare and hard to find.
GC