The Defensor, a sniper alien. This alien is meant to stay-put and be used as a sniper. When killed, as a last defensive resort he explodes with a similar explosion to the Pig Cop tank only without any delay! So like a gib that can hurt Duke if too close. Could use the expander as its weapon.
https://i.imgur.com/gLMbjqq.png
Top frames are its idle/aim frames, bottom are the firing frame, and the frame on the right is meant for his death image right before he blows to bits.
