Almost five years later, and I'm still baffled by the Legacy filmmakers' decision to have CLU's big plan be crossing into and taking over the real world, as opposed to the online world of the Internet. Seeing as they were digital beings, the latter would have made far more sense, and I imagine the world economy at least would be pretty well hosed if a megalomaniacal AI were to run loose all across cyberspace, so it's not as though an Internet takeover threat wouldn't be compelling stakes.
Right. Sark's plan in the original
was to take over the world by taking over the computer network, in that case giving him control of the world's nuclear missiles. So it was silly that the villain's plot in the sequel was so much
less computer-based. Just one of the multiple ways it doesn't really work as a continuation of the original ideas.
Users such as Flynn go to the computer world so its logical that CLU who is basically a version of Flynn would want to go to the real world.
First off, was Clu really a version of Flynn? Sure, he looked like Flynn, as all the Programs looked like their programmers. But in the original movie, certainly, they had somewhat distinct personalities. They reflected their programmers' ways of thinking (and maybe inherited some portion of their souls, in the more fairy-tale version of the original), but weren't actual copies of their minds.
Besides, even if he did want to go to the physical world, it'd be stupid of him not to take control of the Internet
first. They aren't mutually exclusive goals.
Not to mention that it shouldn't have been possible to materialize an army physically. In the original movie, the laser digitization system worked pretty much exactly like the TNG-era explanation of the transporter in
Star Trek: It scans the pattern information of an object while disassembling its particles and either storing them in a buffer or transmitting them elsewhere, then reassembles them according to the stored pattern information. The user's avatar inside the computer world is the pure pattern without the particles of the body. So the only available source of particles for turning Programs into flesh is what's already stored in the buffer. The younger Flynn could bring Quorra out because the mass of Kevin's body was still in storage, so she could've been assembled from his leftover particles with a certain amount of mass to spare. But there wouldn't be anywhere near enough stored matter to turn tens of thousands of soldiers and tanks into physical form. It just shouldn't have worked, by the established rules of the original film.