This may sound bad, and it might be just me, but I find the moving dummies can sometimes be detrimental. They all go at different speeds yes, but they go in the same line of movement, so it's a lot easier to tell where they're going to be. Taking the charger into the octoling levels of story mode is a good place to start too, the biggest difference between them and real inklings though is that they fail spectacularly at covering over your ink, meaning often times I expected them to swim away at speed but they got caught in ink and I missed my shot completely, that's why taking n extra split second to fire your shot can be crucial, so you can tell exactly where the enemy is. Hmmn, as to predicting enemy movement, yes when they jump off ledges it's good to tell falling speed but in higher levels people learn that dropping off ledges is better so that's something to take into account. Also, knowing that when people spot a charger they often have one of two reactions, get out of your way as fast as possible and stay out, or try to rush you as fast as possible, and when they're rushing you it's definitely viable to move if you don't think you're gonna get the kill, even throw in a this way command so someone can help you out. Hav no shame in moving back and finding a better position to readjust. Oh and another thing with predicting movement, it's basiclaly just that, predicting movement. Say you're in sturgeon shipyard, and you spot someone in the enemy team's pit and you see they're about to climb the wall, it just becomes a game of timing because you know their head is gonna pop up over that short wall, so you just charge your shot and wait, take that extra split second to adjust your aim if they're came up slightly to the left or right of where you thought they were, and then fire. It can be tough at first but you'll definitely improve with practice, to the point of being able to spot tiny movements with a scoped e litre and then place the shot exactly where they're going to be. In regards to jump shots too, I use it as a last second adjustment to my aim, if I'm going to jump I'll aim a bit below who I'm going to shoot, then jump so the cursor lands on them and then shoot. Jumping can also help if you're behind a short obstacle or on a ledge aiming down the smaller circle is where your shot will hit, whereas the slightly bigger circle is where's the shot would hit, if there she no obstruction. Normally they match up but if youre behind something, they won't, this means your laser won't show, but you can still aim exactly where you want, then just jump so there is no longer an obstruction and shoot.
Also, it might not sound the most interesting, but recon mode is great for charger users, you can see exactly the shots you can make from certain positions, find small bits of terrain that you can peak your shots round and find places where you can make the maximum use of your range.
My friend code is in my bio if you what to take on league or go to privates anytime.
