Question: Who created the film franchise that became basis for the crossover science fiction first-person shooter computer game franchise developed by Rebellion Developments along with "Alien?" 

Context paragraphs:
Marathon 2: Durandal: Marathon 2: Durandal is the first sequel in the "Marathon" series of science fiction first-person shooter computer games from Bungie Software.  It was released on November 24, 1995.  The game is mostly set on the fictional planet of Lh'owon, homeworld of the S'pht, and once again the player takes the role of a Security Officer from the "Marathon".  This is the only game in the series to be officially released for Windows 95 in addition to the Apple Macintosh, and is the only one released or announced for the Xbox 360.  Unofficially, the open-source Aleph One engine enables the game to be played on many other platforms.  This is legal as Bungie released the original game materials to the public in 2005, and Aleph One can employ them unaltered.

Aliens versus Predator (1999 video game): Aliens versus Predator is a science fiction first-person shooter computer game developed by Rebellion Developments and published by Fox Interactive in North America for Microsoft Windows and Mac OS X computers in 1999.  It is a part of the "Alien" and "Predator" crossover franchise, "Alien vs. Predator".  A sequel, "Aliens versus Predator 2", was developed by Monolith Productions and released by Sierra in 2001.

Halo (series): Halo is a military science fiction first-person shooter video game franchise created by Bungie and now managed and developed by 343 Industries, a subsidiary of Microsoft Studios.  The series centers on an interstellar war between humanity and a theocratic alliance of aliens known as the Covenant.  The Covenant, led by their religious leaders called the Prophets, worship an ancient civilization known as the Forerunners, who perished in combat with the parasitic Flood.  The central focus of the franchise builds off the experiences of Master Chief John-117, one of a group of supersoldiers codenamed Spartans, and his artificial intelligence (AI) companion, Cortana.  Other characters, such as Noble Six from "", are also introduced in the series.  The term "Halo" refers to the Halo rings: large, habitable superweapons that were created by the Forerunners to destroy the parasitic Flood.  They are similar to the Orbitals in Iain M. Banks' "Culture" novels, and less so to author Larry Niven's "Ringworld" concept.

Aliens vs. Predator (2010 video game): Aliens vs. Predator is a first-person shooter video game developed by Rebellion Developments, the team behind the 1999 original Microsoft Windows game and published by Sega for Microsoft Windows, PlayStation 3 and Xbox 360.  The game is a sequel to "Aliens versus Predator 2" and is based on the "Alien vs. Predator" franchise, a combination of the characters and creatures of the "Alien" franchise and the "Predator" franchise.

Creatures of Half-Life: The following is a list of creatures in the "Half-Life" series.  "Half-Life" is a science fiction first-person shooter computer game series which consists of two full games, two episodic games, and three third-party made expansions, as well as a number of demos featuring exclusive content.  The series has been ongoing since 1998.  The game's setting and characters have been influential within the gaming industry, with "The New York Times" writing that with the innovative storyline "Half-Life became the "Citizen Kane" of the genre".  In "Maximum PC"'s review of the original game the monster design was given a rating of "excellent".  The complexity of the creatures progresses as the gamer advances through the game.

Alien Arena (video game): Alien Arena (initially CodeRED: Alien Arena) is a free, stand-alone first-person shooter computer game.  Begun by COR Entertainment in 2004, the game combines a 1950s-era sci-fi atmosphere with gameplay similar to the "Quake", "Doom", and "Unreal Tournament" series.  "Alien Arena" focuses mainly on online multiplayer action, although it does contain single-player matches against bots.

Marathon Infinity: Marathon Infinity is the third game in the "Marathon Trilogy" of science fiction first-person shooter computer games from Bungie Software.  The game was released on October 15, 1996 and included more levels than its predecessor .  These were larger, and formed part of a more intricate plot that spanned both space and time.  "Marathon Infinity", unlike "Marathon 2", was originally released only for the Apple Macintosh.  However, Bungie released the source for Marathon 2 in 1999, allowing the development of the open-source Aleph One engine.  In 2005, Bungie released the entire trilogy to the public as freeware, allowing the games to be freely downloaded.  Finally, in 2011, Bungie released the source code for Marathon Infinity itself.

Aliens versus Predator 2: Aliens versus Predator 2 is a science fiction first-person shooter video game developed by Monolith Productions and published by Sierra Entertainment for Microsoft Windows in 2001, and for Mac OS X in 2003.  The game is a sequel to "Aliens versus Predator" (1999); both games are based on the characters of the "Alien" and "Predator" media franchises as well as the "Alien vs. Predator" crossover series.  It is set on the fictional planet LV-1201.

Alien vs Predator (Atari Jaguar game): Alien vs Predator is a first-person shooter video game developed by Rebellion Developments and published by Atari Corporation for the Atari Jaguar in 1994.  One of the earliest entries in the "Alien vs. Predator" franchise, the game allows the player to take control of one of three playable characters: the Alien, the Predator, or the human Private Lance Lewis (named after one of the designers and testers of the game) of the Colonial Marines.  It received critical acclaim for its graphics, atmosphere and single-player campaign.  It sold more than 50.000 copies, making it one of the best-selling games on the system.  In Japan, the game was bundled with the system.

Predator (franchise): The Predator film series is a science fiction action horror film franchise based on a race of fictional extraterrestrials created by Jim Thomas and John Thomas.  Produced by 20th Century Fox, the series started in 1987 with the film "Predator", which led to two sequels and novel, comic book and video game spin-offs.  Related to the franchise is the "Alien vs. Predator", which combine the titular Predator with the creatures from the "Alien" film series.

Supporting paragraphs: Aliens versus Predator (1999 video game) Predator (franchise)
Answer: Jim Thomas and John Thomas