Lots of people who bought this game didn't pre-order, so SD may have wanted to give them a chance to give them it.
That, or they're just guaranteeing a source of income from people who really want the Hockler and Caesar, like me!

wow, i guess i lucked out then. i bought the game about a month late at best buy and slipped neatly inside was the voucher for the spec ops pack.
Everything in thos packs.. Is crap, serioussly! The only good thing in that pack, is the weapon and that's only in the Doom pack!
i use the greeneye scope on nearly every gun, allows a decent zoom, and doesn't have as negative effect on equip speed as the COGA either. i even put it on the hockler mp (which i always use as my secondary...). oh, and lately i've been using the Sloani mask just to look different from everyone else.... so in my case, i use everything in the spec ops pack. I dont have the doom pack though, so i cant say anything about that.