PSA: Arc Thrower + anti-tank mines is kinda fun
Basically the arc thrower targets anti-tank mines.
Use this to your advantage and zap into the swarm while they are walking over them for some satisfying forced detonations.
Is it the most efficient way to explode bugs... heck no.
Is it a fun way to clear them while still feeling viable? This was a 1 death run with the highest kill count, so it can't be too terrible.
Bonus tip:
Found the missile pistol might have its strongest pairing (against bugs) with arc thrower.
2+ zaps will stun any charger.
While they are stunned it is trivially easy to missile them in the head. 1 missile + 4 head zaps will kill a behemoth, and since it already takes 2 zaps to stun, and the arc thrower tends to go for the head already, you can make consistent quick work of chargers for cheap.