After taking out the orbital concussion turret, Doomguy continued on his way to the abandoned Droid control ship, which Clone Captain Tukk believed where Vox opened a portal to Hell. If Doomguy were to take out the portal, it would cut off Vox from reinforcements from Hell. However, upon arriving at the Droid control ship, one of the entry ports was blocked off by a ray shield. There were two other entry ports, but before Doomguy had a chance to see if either port would let him in, a Droid Gunship flew overhead and dropping off a Homing Spider droid. This Spider droid in particular was larger than normal units. Turns out, that when Vox re-activated the abandoned droid factory, he wanted a series of modified Homing Spider Droids that were larger, more heavy duty, able to break through any angelic assault. This so happened to be one of those units.
One of the ray-shieled entry ports opened, and Battle Droids ran out of the entry port and surrounded Doomguy. Flying demons that caught wind of the commotion also arrived to provide support. Doomguy readied himself. The fate of the New Republic and Resistance shutting down Vox's droid factory operations on Geonosis rested upon his shoulders...