It's so annoying not knowing what promotions are coming until you're almost too late. Fortunately I "caught"
this one thanks to this thread.
Looks like the normal M4 doesn't have any bonuses, so I'll have to grind for the Easy Eight quick. Already unlocked the xp, just needs...oh, a million credits or so which is a lot of matches with my incompetence.
I'm going to be tanking hard this weekend it looks like.