darthdevidem01 on 04 February 2014
http://www.gameinformer.com/b/news/archive/2014/02/04/march-cover-revealed-2014-3151321.aspx
"We had four hours of exclusive hands-on time with Ground Zeroes, which we used to play through the main mission and experiment with extra modes."
Not surprised by the length as it's only a "extended demo" really!!
EDIT:
http://kotaku.com/metal-gear-solid-ground-zeroes-is-short-really-short-1516004297
Apparently it's even shorter :(
