If I was in charge of Descent 4 the whole game would be cut scenes! The engine would still be based around cubes, but they'd be really big cubes. The robots would now also be pirate ninja zombies. And all the music would be Italian folk-metal.
Immediately after the ending of Descent 3 the Material Defender, whose full name is at last revealed to be Materiale James Alfred Deffender-Wahnothritoo, is critically injured when Dravis's army of drones suddenly reactivates. The doctors have no option but to surgically transplant his brain into a cloned velociraptor as it turns out the Dravis he killed at the end of Descent 3 was not the real Dravis. The real Dravis takes over the CED instead of PTMC and Materiale Deffender-Wahnothritoo has to form a massive alliance with PTMC, Red Acropolis, the alien virus, the Daleks, the dinosaurs, Taco Bell, Temeraire, Captain Kirk, Death, and Dr Spanko to destroy all the rest of PTMC's mines so that Dravis and the CED can't take over the WHOLE UNIVERSE!!!!!
That velociraptor part is pushing it a bit... you sick bastard