Either Microsoft is planning on releasing a new military shooter, or it's really getting into organizing its heavy metals into tightly regimented platoons. The company recently filed a trademark with the USPTO
for computer game software titled "Iron Brigade," a possible reference to a Union army unit which served during the American Civil War.
As tech news site Fusible
points out, though more modern units share the name, the trademark lines up nicely with the 150th anniversary of the Civil War. Then again, logic can't always be applied to the naming of games; we could just as easily be talking about a future robot dating simulator or something.