Not exactly one hit, but a combo of hits. I present the "Viking Funeral."
Weapons fire for Viking VKG-3W (Andrew)
MML 9 at Grand Crusader GRN-D-01 (Princess3); needs 3, rolls 7 : AMS engaged! 5 inferno missile(s) hit (w/ -4 malus).
Target gains 10 more heat during heat phase.
MML 9 at Grand Crusader GRN-D-01 (Princess3); needs 3, rolls 8 : 5 inferno missile(s) hit.
Target gains 10 more heat during heat phase.
MML 9 at Grand Crusader GRN-D-01 (Princess3); needs 3, rolls 7 : 5 inferno missile(s) hit.
Target gains 10 more heat during heat phase.
MML 9 at Grand Crusader GRN-D-01 (Princess3); needs 3, rolls 5 : 5 inferno missile(s) hit.
Target gains 10 more heat during heat phase.
Grand Crusader GRN-D-01 (Princess3) gains 42 heat, sinks 20 heat and is now at 22 heat.
Grand Crusader GRN-D-01 (Princess3) needs a 8+ to avoid shutdown, rolls 8 : avoids successfully!
Grand Crusader GRN-D-01 (Princess3) needs a 4+ to avoid ammo explosion, rolls 2 : fails to avoid explosion.
*** LRM 20 Artemis-capable Ammo EXPLODES! 120 DAMAGE! ***
>Grand Crusader GRN-D-01 (Princess3) suffers catastrophic damage, but the autoeject system was engaged.
Grand Crusader GRN-D-01 (Princess3) must make a piloting skill check (landing in water).
Needs 5 [5 (ejecting) + 1 (automatic ejection) - 1 (landing in water)], rolls 2 : fails.
Pilot of MechWarrior Sadewa Sam (Princess3) "Sadewa Sam" takes 1 damage. The pilot ejects safely!
*** Grand Crusader GRN-D-01 (Princess3) DESTROYED by ejection! ***
Grand Crusader GRN-D-01 (Princess3) takes 120 damage to RT.
SECTION DESTROYED,
LIMB BLOWN OFF Right Arm blown off.
103 damage transfers to CT.
Critical hit on RT. Roll is 7; no effect.
Grand Crusader GRN-D-01 (Princess3) takes 103 damage to CT.
SECTION DESTROYED,
Critical hit on CT. Roll is 4; no effect.
Pilot of Grand Crusader GRN-D-01 (Princess3) "Sadewa Sam" has ejected, so no damage is dealt!
To make it even better, a few turns before that, I had pushed him in the water.