This is what he was trying to post.

And now I'll nit pick. The pistol in that picture shouldn't actually be automatic, the G18c is the automatic glock which you are thinking of. Things that set the G18c apart from the G17 are the facts that it has a compensator and a selector switch, which that pistol does not have. Not only that but, Glock does not make G18s with OD frames.
Tl;Dr Devs are Mw2 are stupid and the G18 is actually a G17 with inaccuracy firing abilities.