Obviously, if you have Stark and Banner designing it, it's going to be done in a common-sense way which it was in this movie. First, you want to store it in a place where it can't be damaged and can deploy anywhere quickly... space. Then, if you think about it, you want to be able to lock the Hulk down, not necessarily fight him. I thought it was cool that Veronica's first protocol was that cell that Hulk was, apparently, unable to break through. Of course, just go through the ground then, which is what would naturally happen, also well done. Then, having Veronica also be a support vessel because Stark and Banner KNEW that the suit would take damage during the battle, just kicked ass.