The G.I.Joe movies are based solely on a cartoon made for kids. Remember that. Take the "realism" with a grain of salt and remind yourself that it isnt about the real deal in Iraq or 'stan.
I grew up in the 80's and subscribed to the comic book from issues #16 through 50-ish, it went through a lot of changes. Some good some not so good.
I wonder if Storm Shadow will turn out to be good like he did in the real story line??? He didnt kill his uncle, another baddie did, it only looked like he did.