Alrighty, might as well give a bit of a better explanation for the SOundwave battle. He will bring in mooks to help him out, as in....more robots to fight, ground ones, the odd bulky ones that carry an arc cannon (like the one Nixx fight and destroyed) as well as flying ones). He will use that machine of his to reload, since his suit can carry oh so much ammo at once....so at some point, would be best to take care of said machine.
The Hydra will be deactivated throughout the battle, so...they wont have to worry about that thing waking up suddenly and attacking everyone....as cool as that would be, I think that it would just be a bit unfair and all that.
And of course, once he runs out of ammo for good, as in, his machine being destroyed, he'd be a bit more easier to get to and take head on. As in, Gustave or Alfred, or even both can go at him in hand to hand combat, keep him busy or something like that while others could find a way to destroy his Rhino suit for good.
Course after that....it'll be Soundwave against ROSS on the internet more or less.
So yeah, that's the basic rundown on the rough idea of how it will all play out anyway. Course things may change here and there....save for the Hydra coming to life....as stated, it shall remain deactivated....though I guess the fear in just seeing it there may still have others just thinking that it'll just come to life at any given moment sort of thing XD
And the other thing I will also note too, before I forget, what Zyanya says in Spanish....as I stated before, I use Google Translate to turn an English sentence into Spanish....so reverting it back around may come out a bit odd, but the effect/idea is still the same more or less. So yeah, if it seems odd translating Spanish back into English, that'll be why.