Their melee is insane, can occasionally cause AoE damage, but it's only 65% accurate and the biggest problem is pathing of this behemoth, so you'll always struggle to actually get it to attack. The ranged damage in contrast, comes mainly from the big 'Zzzap Gun' which is 75% accurate - a rarity among Ork units. Basically, you almost never bring the Squiggoth for its damage, but rather use it as a frontline damage sponge/transport to disembark your boyz, while the Looted Tanks shell safely from afar, etc.
