Was it an opened box? It's crazy that the plane was missing parts. You paid 100%, so that is what you should get. I would take it back to Target and demand they put the next one that comes into the store aside for you. (Talk to a manager and tell him you will never shop in this store again, and inform him that you will be calling Target's head office. Trust me, the squeaky wheel gets the grease.) Be curt with them, they would be if you left and only paid for half of it. I would write a scathing letter/email to Hasbro about this too. Call Hasbro's 800 number and light them up. It is unacceptable, that integral parts are missing from a new box! Sorry man, this must really tick you off! I am pissed for you.
Update-I just looked- Hasbro online has them in stock. You could take it back for a full refund and order it directly from Hasbro. With a receipt, they must give you a full refund.
http://www.hasbrotoyshop.com/gi-joe...=520&ST=SO&PG=1