YA Science Fictiom. Team of Space Marines goes to another planet (Mars) to investigate why their outpost has stopped responding. End up being take captive by a hostile force, have to fight their way off that new planet. Two authors.

[Kyle]

I remember this book has two authors, the book was set in the future, there were multiple alien species that were warring with each other. Space marines go to Mars to check on the outpost and find that their fellow soldiers on the outpost have been ritually killed by a group of aliens that have a more war-based society.

[Kris]

Kyle, around what year did you read this book? A range of years is fine.

Who is the main character? This book is written for teens, not adults?