03:07:38 PM Apr 21st 2013
In point of fact, Bee Train had nothing to do with Halo Legends. Kōichi Mashimo and Koji Sawai have both worked with Bee Train before, but the commentary that goes along with Homecoming (the episode in question), the credits from the episode, and The Other Wiki all indicate that Homecoming was produced by Production I.G. not Bee Train.
03:10:12 PM Apr 21st 2013