In what is no doubt a malfunction and will result in a lot of cancelled orders, as of 4:57pm on 4/16 you can order the Weapons Pack off Mattycollector: Link
Laugh or cry? The choice is yours.
Update (5:35pm): And now the party’s over–the set is back to “Coming Soon.” Will Mattel/Digital River honor the orders that made it through, or will they cancel orders made a mere three days before the actual sale date? Place your bets.
Update (5:47pm): Yep, orders cancelled. I won’t complain even though I got an order in, because it really wasn’t fair. What does bother me is Mattel will no doubt continue to stick with this incompetent vendor and its amateurish website. (See, this is why I don’t get review samples, folks.)