3. Batman Is Bad At Plans
First, a little background: the majority of the film's plot is based on Justice League: Tower of Babel, where Batman's contingency plans to disable or defeat his fellow members of Justice League, put in place in case the heroes fo rogue or are controlled, get stolen, and put into use. The fact is, though, these plans are not good. First example: Green Lanter is blinded. He is also blinded in the comic, and he essentially loses his powers there, because he is unable to use his powers without sight. Kyle Rayner is an artist, and therefore relies on sight to create constructs with his ring. The catch is that Kyle Rayner is not the Green Lantern in the film, John Stewart is. He does not have the background of being an artist, and is actually shown creating constructs in the film after temporarily losing sight. So, it seems that he is incapacitated to the same extent that pretty much any person would be by losing their sight - which is considerably, but it's odd that Batman's contingency plan for the Green Lantern here has seemingly nothing to do with the Lantern's powers. Batman evidently has absolutely nothing prepared for Superman or Wonder Woman, two of the most powerful metahumans on the planet! Maxwell Lord, the main villain of the film, who hijacks Batman's blueprints for superhero takedown, does come after Superman and Wonder Woman in the film, mind you. He does so, however, using mind control, a power Batman absolutely definitely does not possess. Really, Bruce? You have nothing? Kryptonite? No? Ok. Wonder Woman, in fact, is immune to telepathy (due to her tiara). "You were the only one I couldn't get to", Maxwell Lord tells Wonder Woman after his plan to get Superman to kill Wonder Woman fails, meaning Batman had no plan in place for her. Dark Knight's plans for Aquaman, the Flash, and the Martian Manhunter, though, are really extreme, effectively dooming each of them to death through the schemes. Given that Batman had the ability to blind Green Lantern, he could just have done that to all the other heroes, right? Why he did not choose to do that as an alternative to gruesome death,I'm not sure. In fact, out of all of the superheroes in the film, he is by far the least perturbed by the idea of killing people, evidently. Which brings me to the next point: