>>527667367
Orbital Lightning Strike
singular lightning bolt fired from the super destroyer, targets the nearest/largest target to the beacon just like the railcannon
very low cooldown (~45-60 seconds) but middling damage output (enough damage to one-shot a spore charger, but not enough to kill a charger behemoth outright, maybe it strips the back armor at least)
applies heavy stun (can stun bile titans/tanks/etc for a handful of seconds)
synergizes particularly well with things like the arcthrower that struggle with TTK on large targets and could use the extra oomf of a spammable anti-heavy stratagem, similar application to eagle rocket pods

bonus points:

Orbital Lightning Storm
barrage version of the orbital lightning strike
long duration, steady rate of lightning strikes, relatively long cooldown
similar cadence/duration/cooldown to the 120mm barrage, but explicitly targeting heavies with the added utility of persistent heavy stun, but inefficient at dealing with medium/light mobs