Question: What year did an RPG use the line that Ross Watson worked on?

Context paragraphs:
Beef Trust (burlesque): Beef Trust, in the context of American burlesque, was a chorus line composed of large and reportedly beautiful women known as Billy Watson's "Beef Trust."  Use of the phrase in American burlesque was adopted after the turn of the 20th century (around 1909) by Billy Watson "(né" Isaac Levy; 1852–1945), a comedian, theater manager, and stock company entrepreneur.

Kid Fite: Ross Watson, better known by his ring name Kid Fite is a Scottish professional wrestler and wrestling promoter.  Watson wrestles for numerous promotions on the British independent circuit and throughout Europe.  He is perhaps best known for his work with Insane Championship Wrestling.  Watson is also the owner and promoter of Premier British Wrestling.

Paul E. Watson: Paul E. Watson (died 1943) was a pioneer researcher in the development of radar.  Born in Bangor, Maine, Watson was a civilian engineer employed by the U.S. Army Signal Corps from the late 1920s.  In 1936, he was named Chief Engineer of a Signal Corps research group at Camp Evans in Fort Monmouth, New Jersey tasked with developing a workable long-range radar for coast defense.  By 1937 Watson's team had developed a proto-type "Search Light Control Radar" (SCR-270) apparatus and successfully demonstrated it to the Secretary of War at Fort Monmouth.  Watson's team then became the "Radio Position Finding Section", and worked with the Westinghouse Corporation over the following year to develop an Early Warning Radar, which was successfully deployed at Highlands, New Jersey in August, 1938, and was capable of detecting incoming bombers at a range of 78 miles.  A second system was deployed in Meriden, Connecticut in June, 1939, with an operational range of 138 miles.

Ross Watson (game designer): Ross Watson (born May 22, 1975) is a designer of computer, miniature and role-playing games and a writer in various genres.  Watson worked on the Warhammer 40,000 Roleplay line as the Lead Developer for Dark Heresy, was the lead designer for Rogue Trader and Deathwatch, and was part of the design team for Black Crusade.  He was the lead developer for both Aaron Allston's Strike Force and Savage Worlds Rifts.  His written works include the Accursed and Weird War I settings for Savage Worlds, contributions to the Star Wars: Edge of the Empire RPG, and the video games Darksiders II, , and .  Watson has designed rules and scenarios for miniature game lines, such as Dust Warfare, and he has written for several card games, including , Empire Engine, and the Lost Legacy series.

Phil Watson (footballer): Philip Ross Watson (23 February 1907 – 1990) was a Scottish professional footballer.  He made one appearance for the Scotland national team.  He played as a defender.

Galton–Watson process: The Galton–Watson process is a branching stochastic process arising from Francis Galton's statistical investigation of the extinction of family names.  The process models family names as patrilineal (passed from father to son), while offspring are randomly either male or female, and names become extinct if the family name line dies out (holders of the family name die without male descendants).  This is an accurate description of Y chromosome transmission in genetics, and the model is thus useful for understanding human Y-chromosome DNA haplogroups, and is also of use in understanding other processes (as described below); but its application to actual extinction of family names is fraught.  In practice, family names change for many other reasons, and dying out of name line is only one factor, as discussed in examples, below; the Galton–Watson process is thus of limited applicability in understanding actual family name distributions.

Steve Watson (wide receiver): Steve Ross Watson (born May 28, 1957) is a former American football wide receiver and current wide receivers coach.

Llancaiach Branch: The "'Llancaiach Branch" railway line was a mineral branch line in Glamorganshire, South Wales.  It was authorised in 1836 as part of the Taff Vale Railway, and its purpose was to connect collieries at Llancaiach and bring their output to Cardiff for onward shipment.  It was designed by Isambard Kingdom Brunel and built on the standard gauge.  It opened in 1841 from a junction (later known as Stormstown Junction) with the Merthyr line immediately south of Abercynon (then called Navigation House).  It was intended to be horse worked, and included a self-acting rope-worked inclined plane near the junction.  The collieries were slow to use the line, preferring their customary use of a tramroad and the Glamorganshire Canal, and the value of the line was diminished when the "Taff Vale Extension line", an east-west connecting line belonging to the Newport, Abergavenny and Hereford Railway, intersected it and cut off the colliery connections, and the line became dormant.

Deathwatch (role-playing game): Deathwatch is a role-playing game published in 2010 that uses the "Warhammer 40,000 Roleplay" system.

Ross Watson: Ross Watson (born in Brisbane, Australia in 1962) is an artist.  He has exhibited in many solo and group exhibitions since 1984, including important surveys of Australian and international contemporary art at the National Gallery of Australia, the National Gallery of Victoria, and in the Toronto and Melbourne International Art Fairs.  He has been described as a 'proud, gay man', and sexuality has inspired several of his works

Supporting paragraphs: Ross Watson (game designer) Deathwatch (role-playing game)
Answer: 2010