Other people might suggest other ways to begin, but this is what springs to mind for me if I was to start from fresh in your position;
Find a few characters you like and start messing around with them. Look up some youtube videos for their simple combos and try learning some of them. At the same time look at how the characters you’ve chosen can move around the screen. Look at how fast they can dash (using the 2 button dash), and if they have an air dash and look at what moves they have (projectile attacks are generally much better than attacks moves which involves throwing your own body at the opponent, and swords are MUCH better than non-sword attacks, so having swords and projectiles are very handy). So just play around until you at least have a general feel for them as a start.
Look at the characters you have 2nd and 3rd, and what assists they have, and think about what they let your character do. The common good ones are beam assists (Doom’s Plasma Beam/Magneto’s Disrupter and so on), quick assists (Akuma’s Tatsu/Frank’s Shopping Cart) or maybe you would want to consider vertical control assists (Dante’s Jam Session/Strider’s Vajra). Just play about with them and see what they can do and how quick they are, as well as how vulnerable they are.
From there, try playing against some people online using the player match function set to your region. The game’s been out forever so there won’t be many people close to your level, but your objective is just to play actual people and observe and learn. If you come across anyone even close to your level, play them until they leave the lobby, then add them to your friends list so you have at least one person to play every now and again who you can actually learn from and apply the things you’ve learned.
The main point is you’re trying to play people, and not AI, because AI sucks and teaches you a really weird way to play the game full of bad habits which won’t work against any person. The only thing they can be useful for really is to get a feeling for how to move your characters around and make the most of combo opportunities with your available meter.
If you’re going to have a proper go at this just please be prepared to learn a lot of information over a long period of time, because it’s not easy playing Marvel and there’s a silly amount of things you need to know. For reference IMO some of the easiest characters to pick up are characters like Wolverine, Wesker, Hulk, Sentinel, Doom, Taskmaster and Vergil (there’s more but my mind is drawing blank). Check out the specific character forums here http://forums.shoryuken.com/categories/ultimate-marvel-vs-capcom-3-character-discussion
Other than that, welcome to the community and good luck.
