Disclaimer I don't own Mass Effect yada yada yada. Now we are in Mass Effect 1 people. Thrax will meet with Shepard.
Seven years. That's how long Thrax had been hunting down any Cerberus operations he could find. Now as it turned out there was a Cerberus lab back on Binthu.
This time he planned to blow up the lab. Hopefully this will be the last time he will have to set foot on this planet.
Thrax saw the lab and was fearful of what he'd find in their this time. He wasn't sure of what was worse than children used as experiments, but with a group as fucked up as this he just didn't know. He saw the front entrance and was surprise to see six bodies. Deciding to investigate he ran toward the bodies and saw that a few had been killed by being beaten from a large person, or krogan. Hearing an explosion from inside the base he rushed in.
Inside the base there were many bodies. Whoever was attacking this base was obviously very skilled. He walked towards the fighting noise and he found that he was in that dame square room he saved those kids from seven years ago.
This time the room was different there were a few crates scattered along side the wall. There was a giant purple square force field surrounding "rachni!" Thrax shouted.
Thrax lost all semblance of control. He shot the terminal that controlled the force field and charged the rachni. He leveled his shotgun and fired his shotgun once and turned and backhanded another before he stomped on it repeatedly, ignoring the acid he felt burning through the armor on his back. Turning he threw a warp at one of the last two rachni disintegrating it, and charged right at the last one getting a face full of its acid spit, but that didn't stop him from slamming right into it and started punching it until there was nothing recognizable.
He heard footsteps from behind and quickly turned spun his shotgun and was face to face with two humans and a krogan. For a second all four just stood there guns pointed at each other before the human in the middle said "who are you."
Before Thrax could tell him to piss off the krogan spoke "his name is Thrax. He's considered one of, if not the best solders of fortune in the galaxy."
Thrax looked at the krogan and said "ah now I remember you whelp. Didn't I kick your ass, what was it, seven hundred years ago?"
The krogan (Wrex if he remembered correctly) started to growl and move forward before the human said "easy Wrex."
"Well, well the great Urdnot Wrex is now this humans bitch. Or is he paying you?"
Wrex ignored the human and charged Thrax pushing him back into the wall behind him. Wrex punched him with three quick strikes, all of which were blocked before Thrax hit him with a knee to the quad and a powerful bioticly powered upper cut which sent Wrex into the air and caused him to flip into the air and land on his back.
"Pathetic! You were a bigger challenge seven hundred years ago whelp."
"Enough!" the human said as he threw Thrax back into the wall.
For the first time Thrax got a look at the human who he supposed was the leader.
"I know you. Last time we met you put six shots in my chest. I believe it was on Elysium."
"I thought you looked familiar."
"Commander Shepard, the Survivor of Akuze, the Hero of Elysium, and my personal favorite the Butcher of Torfan."
"I lost a lot of friends on those missions"
"Hey calm down Shepard I approve that pirate group had it coming."
"You were a part of them!" Shepard said.
"No I haven't been a part of any kind of group for over seventeen hundred years." Thrax said suddenly very monotone. "So anyway Shepard what are you doing here on this glorious toxic planet." Thrax said with exaggerated wave of his arm.
"An alliance admiral sent me the location of three Cerberus bases on this planet."
"Why the hell would an admiral have Cerberus Intel?" Thrax asked.
"I don't know but I think he's been kidnapped by Cerberus. You look like you came here expecting a fight. You got something against Cerberus?"
"Yeah, after you shot me six times on Elysium I stumbled into some apartment, thinking I was going to die and passed out. When I woke up I was in some Cerberus space station. I broke out of my restraints, shot my way to a shuttle, paid the shadow broker for any information he had on Cerberus and spend the next seven years hunting. You don't want to know some of the shit I've broken up."
"There's one last Cerberus base on this planet and since Wrex hasn't regained conciseness I'm going to assume you hit him pretty hard. What do you say to join forces?"
Thrax wasn't sure whether he should laugh reject him or agree. This human was probably the only one in the galaxy who Thrax had even a smidge of respect for. "Alright Shepard you got yourself a deal."
They left twenty minutes later (having to wait for his ship to pick up the whelp) before the could get moving. On the way there Thrax's curiosity got the best of him "so Shepard tell me, what's the first human SPECTRE doing hunting down a terrorist group that's your own species fault anyway?"
"My ship picked up a strange distress signal, I followed it and found a group of alliance marines torn to shreds. I told the admiral who was responsible for those men and a few days later he told me about Cerberus and where to find them."
"Sir with all due respect, should you really be telling this krogan all this?"
Thrax turned his head (he was in the middle) to the other human "you got a problem with me human?"
If she was scared she hid it well "no I'm just not sure if the commander should be telling you all this."
"Don't worry human I know more about Cerberus than you do."
"Children settle down or I will turn this Mako around and no one get to destroy a Cerberus base."
The human and Thrax both just looked at him hers with amusement, his with a look that said "the fuck."
They arrived at the base and found it on high alert. There were at least fifteen guards at the front, most were carrying assault rifles but there were a few that had missile launchers. Shepard told the other human, Ashley, to man the gun before he sent the mako into high speeds toward the base. With one shot of the cannon the fifteen became five, which were quickly run over. Leaving the mako Shepard started hacking the door controls, taking to long for Thrax he shoved Shepard aside opened his own omni-tool and in less than three seconds had the door unlocked. Both Shepard and Ashley looked at him with surprised looks on their faces.
"Yeah the krogan knows how to use his brain." Thrax said his voice dripping with sarcasm.
Going through the now opened door they made there through the small room and through to the main room. It was identical to the lab they were just at. Inside to Thrax's rage, there were more rachni. Thrax let go of all control.
He charged right at the scientist who was working on the terminal in front of the force field, he grabbed the back of his head, and put him through the terminal killing him and shutting down the force field. Charging toward the first rachni he set his sights on and shoulder checked it to the ground before he stomped it. Spinning he saw Shepard and the female trading fire with the Cerberus solders. Thrax ignored the fighting humans and went back to the rachni. Punching the ground, he sent a shockwave toward the four remaining rachni before pulling out his new claymore (he modified it to be the same as his old one. With a bayonet, larger clip letting him fire three shots before he had to reload, and a longer barrel for greater damage) and fired it three times before he discarded it to charge the last rachni and stomp on it until it had no recognizable form.
Panting he went back over to his shotgun and reloaded it, seeing that the humans were still fighting Cerberus he quickly threw a singularity and then tossed a warp field which caused a big biotic explosion.
Walking over to the humans he said "well that was fun now if you'll excuse me I'm going to ilium and get drunk off my ass."
"Your pretty handy in a fight, and right now I need the best, would you consider joining me?"
"Tempting, but I don't work with Spectres, I fight them, even killed a couple but I don't work with them. Besides you put Wrex and I in a small frigate we're guaranteed to wreck the entire ship." Thrax said as he started to turn and leave before he left through the door he turned his head and said "hey Shepard, take care of yourself."