I heard a guy in a map I was in say that in 2.5 you won't be able to spam several guns quickly (In other words, holding down fire, then pressing 5 7 9 3 4 really really fast so you fire freakishly hard), I don't know if this is true or not, but I don't think that this "gun mixing" technique should be nerfed like at all. At the very least there should be an option in the match making window to not have a gun delay like I've heard there's gonna be.
I'm probably not the only one that's practiced hitting freakishly hard using this technique (I can fire like all 5 of those guns in like 1 second, and I can also throw three grenades first so the delay causes them to explode into the gun mixing, and hit even harder, it does so much damage the guests literally end up thinking I'm hacking), and some maps with really high HP like my jugvsjug map rely on it. Also, it brings an entirely new element to it when you have to learn to press the numbers really fast in order to hit really hard, and it's not unfair because everyone can do it if they can just practice enough.
The ranked matches like snipers and stuff won't be helped because there's not enough guns for it to be effective, and any ranked matches that have enough guns to use it probably won't have high enough HP for it to be worth it because you can probably kill them in 2 hits with a pistol anyway, so all this does is hurt matches with high HP people.
Also, if you've seen how it looks when I throw three grenades, then gun mix into it... It's REALLY cool. I've become rather famous in the 7vs1 and jugvsjug maps has being freakishly powerful because I hit so hard that it's literally comedic.
And the thing is, it's not like it's even impossible to win against someone gun mixing even then, if the team is really organized and really REALLY good, they can still beat even me sometimes by dodging, then other people attack from another direction, making them impossible to kill while they all spam at the same time. Although it doesn't happen that often since I've perfected this technique to such an extent.
I don't think it should be removed for the same reason that self boosting shouldn't be removed, certain maps rely on it, could you imagine a map like my jugvsjug map, where each team has 4 jugs on it, and actually killing all 4 of them really really quickly if you couldn't gun spam? (Also, btw, my jugvsjug map had a lot of people playing on it the other day)
I heard there's only going to be a short delay before firing or something, but even then, it limits the effectiveness of it and makes it so there's not has limitless of potential for higher skill levels with it. And yes, being able to move, coordinate a mouse, aim, and press 5 of the exact right number keys so fast that sometimes the rocket and BNG literally end up flying next to eachother is a skill, even if it isn't the same kind of skill that most people practice.
Honestly, it adds a new element to it to be able to do more to enhance combat than to just boost over people and shoot from above, to actually be able to gun mix at them too while doing so is amazing.
Also, I colored each of the paragraphs in different colors so it would be easier to read.