AN: Carolina is the only one to use her Halo 3 engine armor more than once.

Disclaimer: I don't own RvB or Mass Effect, if I did why am I writing Fanfiction about it, I could make it happen.

Freelancer Effect: Season 1 Chapter 0: Prologue

UNSC prototype frigate: Federal of Chorus: 2555 AD

Wash walked in the halls of the UNSC ship, thinking it felt like years ago when he met the Reds and Blues, a group of idiotic sim. troopers that helped killed the Meta, a former Freelancer that was used by Sigma, an A.I fragment of the same organization, but it was finally over, they've killed the Director, and disbanded Project Freelancer. 'Finally, at least nothing can go wrong now, we're going ho-' The ship rocked with an explosion that nearly knocked Wash off his feet.

His radio crackled to life, "All units of the Blood Gulch crew please report to the bridge." It was Admiral Doyle, a veteran UNSC officer who offered them a ride back to Blood Gulch. Wash knew officially he died at Sidewinder, but then again, official UNSC records were usually wrong. He broke into a sprint as he made it to the bridge. The former Freelancer enters the bridge and sees the Reds and Blues, even Carolina and Epsilon.

Donald Doyle says, "The Slipstream Drive has malfunctioned and we're are on a crash course with an unknown planet, normally I would inform the crew via intercom, but I don't want to cause a panic with the recruits." Everyone else in the room looked at Doyle with an expression that says, 'What the fuck, you brought us here to say that.' With the exclusion of Carolina and Epsilon, whom were already there.

Epsilon said, "Well my calculations says, we're fucked, but this ship was built to keep it's crew safe in case of a crash landing, we have to get all the crew into those pods. I've already sent the orders to all of the crew, now let's make ourselves scarce."

Everyone else nodded and sprinted to the pods. They make it with 7 minutes left. Doyle, "I'm unlocking the pods, get in and hope for the best, and don't worry the captain always goes down with the ship. Good luck, Agent Carolina." Carolina merely nodded as the pod closed in on her.

SSV JackHammer of Eden Prime defense force: 2182, 2:00 Citadel standard time.

Alliance crew look and see the crashing UNSC frigate, but they thought it was a meteor. Little did they know the survivors will team up with a future hero, one of them asked, "What the hell is that?" The rest of the bridge crew shrugged.

The camera zooms out of the front of the ship, then showing an overview of the planet. Capitalized words above the planet says 'The Freelancer Effect.'

Crash site Alpha: 22:00, 2556, Earth standard time.

Grif yelled, "CABOOSE!"

Caboose, who was staring off into space, yelled in surprise, "GAH, WHAT!?"

Grif immediately with an unseen roll of eyes, asked, "Have you seen Caro-Wait a minute, what the hell are you doing?"

Caboose looked off again and asked dimly, "Have you ever gotten the feeling that something really, really bad is going to happen?"

Grif deadpanned, "Only every single fucking time I have to talk to you,"

AN: The last part is a tribute to Season 13, good luck RoosterTeeth.

P.S Anyone who makes a picture of this FF, gets a cameo, send it through PM, also comment on my first attempt at this kind of Crossover.