Not a huge buyer of GI Joe (or SW lately), but I just got the Crimson HISS tank, and I'm kind of annoyed. The tank is cool looking and seems like it'd be a fun toy, but Hasbro messed up 3 times with mine. First the didn't include the "front weapon" piece in the box. Second there are two backpacks for the driver (should be only one). But I could kind of deal with those two, the last ruins the toy. The tank comes in two pieces, a body and a chassis that connects to the treads. On the top of the chassis is supposed to be a ring that the body attaches to. Except the ring wasn't in the box either. So I have a very cool, aggresive looking set of tank treads, and a tank body, that is partially disarmed. I would've just put it back in the box and taken it back to Walmart, but the connection of the treads to the chassis seems permanent, so it won't fit back in the box. I sent a note to the customer service folks at Hasbro, hopefully they'll be able to offer some sort of solution, which will probbaly be "Ship it to us and we'll send you an equivalent item".
I've bought a dozen or so Star Wars and GI Joe vehicles in the last year or two, and they've all been complete up to now, so I can't complain too loud, just frustrated today....