Pew Pew Pew. Apache Gunship - free model from Hs 3D on Blenderkit (with thanks, best bit about it).
When the alien spews new tentacles from its (unseen) body, they are weirdly low resolution and either don’t bend or bend in strange 90 degree angles, which is handy for people not very good with Blender when they come to make a representation of the apocalyptic scenes.