From observation, a zombie can't use SSA's fictions but still, it can pull the trigger of sub-machine gun holding on his hand

  *Grooar*

  While making a sound zombie in SSA starts to walk around the corpse of big zombie.

  Kongou tries to move silently to take out the zombie in SSA with one shot. While moving he didn't separate his sight from zombie because he doesn't want to turn meat paste.

  Suddenly Kongou notices glint on camera that places on the left side of the helmet immediately he runs behind the building. Right after him, a zombie in SSA starts to fire Kongou's direction even after he hides behind the building.

  "Shit did he turned into a zombie while using his thermal vision?"

  Cursed Kongou if hides behind cover he already turned into beehive along with cover he using from high calibre bullet.

  "I can't let that zombie waste any more ammo of SSA."

  With a thought, Kongou retreats quickly. Then, he starts to think a way to kill that zombie without damaging SSA too much. After long thought, Kongou got an idea.

  First Kongou prepares magazine of smg loaded in particular high-velocity bullet but even with this bullet still not enough to penetrate armoured part, but have enough force pierce face part of the armour but for that Kongou need to close to SSA.

  Kongou again moves towards zombie in SSA but stops meter away from outside of zombie's detection range with a fire extinguisher in his hand. First, he cleans average zombie's around him.

  Then switches to HV bullet and detaches suppressor he doesn't want to destroy by HV bullet. Then opens stock and holds with his two hands. After that, he holds his breath while clenching his teeth sprays fire extinguisher around his whole body.

  Immediately after he finishes surround his body, Kongou dashes towards zombie in SSA. In first few seconds Kongou's heat signature disappears from SSA's thermal vision. But not for long.

  Zombie's eye light in red and starts to aim his gun to Kongou but that few second in enough for him, he aims his smg and starts to fire at face part of the SSA. Recoil was so insane that even with his proper stance Kongou moves few cms from his previous position without lifting his leg.

  After emptying half of his magazine, Kongou stops firing his gun and saw the SSA with full of small dents, but it was intact except face part in pieces.

  With a cold system like sound Kongou's level increases by 2. One from reward and another one from exp received by killing a unique zombie. When Level 1 Protective Garment appears front of him Kongou immediately switches with his kevlar.

  Then Kongou arrives front of SSA and pulls the lever reside in between armour's back, the backpack that keeps ammo and battery.

  SSA's open from front except for leg and hand part. Kongou removes zombie then he steps inside the armour.

  Kongou finishes registering his id to SSA's system. When seeing the status he curses the previous pilot for using ammo needlessly. He disables terminal vision of the helmet then starts to walk towards the supermarket.

  On the outside of people view, he exits the suit and enters the supermarket.

  Inside the supermarket, Kongou tells Shoyo that he finished his part.

  "Really thank you for that," said Soyo. After closer inspection Kongou finds out Soyo is a soldier or someone who taken combat training.

  "Are you a soldier?" asked Kongou

  "Ah no but I was just a warden," said Soyo

  When Kongou heard Soyo is warden he quickly asks

  "Do you know prisoner named Jack Hayden?"

  "I don't know, but I know someone who knows, her name is Tsuchiya Isoko, she was sectary of the man who manages prisons," said Soyo

  "Then let's make a deal I will transport you to convey in exchange you let me meet Tsuchiya Isoko " said Kongou.

  "Deal"

  Then, they quickly prepare to move, they got surprised when see Kongou got in SSA. Everyone starts to doubt that Kongou can use that SSA but they swallow back their words after seeing Kongou easily kills a group of zombies front of them.

  A few hours later they meet the convoy fighting against a large group of normal zombie with four big zombies. Survivors convoy have six SSA if he counts one on the ground with crushed helmet and few armed police officers fighting against zombies.

  Because of regular guns, didn't work on big zombies SSA focus fire on them. While police officers attacking normal zombies. One SSA fired arm gun to a big zombie but didn't manage to give a deadly blow. While dragging his guts Big zombie still moving towards them.

  Suddenly fireball appears from nowhere hits one SSA and explodes. By following the trail they saw a zombie with a big mouth that taking 3/4 part of the body standing on the rooftop of a three-story building. Then another fireball starts to appear on zombie's mouth.

  When seeing zombie preparing to launch another fireball man exits from his SSA and runs for his life when one woman tries to stop him but the man takes out his pistol immediately shot a woman to death.

  Seein scene Kongou gets very angry for the man not doing his duty and even kill one he suppose to protecting. Zombie launches another fireball and destroys SSA that man left behind.

  They can't aim zombie launches fireball because of an ordinary zombie getting too close. Seeing that Kongou starts to fire to zombies with hand holding SSA submachine gun.Meanwhile with another hand with arm gun he aims that fireball launching zombie fires two times.

  First shot misses it but second shot blows off zombie's upper body. Then he takes out his normal smg also starts to fire against zombies.