User blog comment:Spetsnaz117/What do you think the Prometheus Weapon is gonna be?/@comment-1060384-20100528080746

a gravitation gun:

5th Race 1: Oh look the Chimera are attacking.

5th Race 2: Where's my anti-Gravitation gun?

5th Race 1: Here Bill.

5th Race 1 hand 2 the gun

5th Race 2: Thanks love.

2 pulls trigger and a huge lump of rock detaches itself from the earth, 2 moves the gun and the rock follows till it is hovering over the chimera, 2 lifts the gun up and down quickly and the rock goes up and down aswell flattening all the Chimera.

THE END.

He also did it to the towers, that's how they ended up underneath the ground.