Destroy all Titans: Chapter 1, The Gate

"Humanity was suddenly reminded, about the humiliation of being at their mercy."

"Right flank, head towards the titan!"
"Roger, Commander Gonzol!"
The clattering of the horse grew faster and faster as the entire right flank suddenly stopped.  The sound of cables shooting through the air as five soldiers zipped around the titan.  A soldier zipped right to the back of it's neck and made a huge slice with his sword, and it fell to the ground.
"All clear, Commander Gonzol. We can start heading to the gate. We have finally had a successful expidition without any casualties!" A soldier said as he looked forward to see dozens of 4-meter tall abnormal titans running for the open gate.
Meanwhile, Jerod Fiscer was running to the gate to watch the soldiers return. He always wanted to follow in his father's footsteps and become a soldier. His dad wasn't one of the soldiers that goes on the expeditions.  His dad was stuck guarding the city from any titan attacks.
"I hate those soldiers. Our taxes go towards fattening those creatures up." Jerod heard a man say.
Not many people like the soldiers, even though they are the reason humanity has still survived being at the mercy of the titans. The soldiers go on expeditions every once in a while to find out more about the titans. They still know very little about the titans, even though they have been eating humans for hundreds of years. Titans are giant, human-eques creatures that have one goal- to eat humans. They get no nutrition from the humans. The only thing they pay attention to are humans. They range from 4-meters to 15-meters tall.  They have huge mouths and the ability to regenerate any part of their bodies except for the back of their neck.  One strike to the back of the neck is a fatal blow to the titans.  The soldiers each have a machine called their 3D-Maneuver Gear. It lets them zip across areas to avoid the hungry mouths of the titans. Some titans are different. They are called abnormals. They don't act like normal titans. They are faster, crazier, and scarier.
"Here they come!" Shouted Jerod. But right before they got to the gate, the titans ran in.