You and your best friend were expendables. You were both told to retrieve the Crystal. When the two of you tiredly got to door 50 you heard your 'friendly' fish from his nearby vent.

"Hey,over here freinds."

Both of you crawled through teh vent met with Sebastian and his usual supply on his tail.

"Egh..its you..I'm joking! Welcome back friends."

You both bought things from him. Repaying him with documents and USB's. Right before you were about to leave,Your friend granned their flash beacon and flashed it at him. Both of you KNEW he HATED that,so Sebastian growled and grabbed fhem lifting them in the air

"Dont..do that..again.."

he said before harshly throwing them on the ground. They just laughed and did it again to which Sebastian angrily grabbed his gun and shot them..

"I..warned..you..~"

He mumbled. You stood in shock. Sebastian looked at you in annoyance. You went to grab for your flash beacon but he pointed at the vent and yelled

"Get OUT!"

so you immediately crawled into the vent and out in fear.