I agree with the bold part, and that is what it should be. I dont think they will add any additional boosters specifically for the classic mode such as SA/fleetfoot etc., unless they are planning to bring them back regardless.
I personally wouldn't mind mysticals together with power weapons scattered around and up for grabs but I am pretty sure the majority of the people asking for a classic mode will hate it, because they mainly want a mode where they can have extended shootouts without any over the top weapons/abilities such as cluster-bombs/Wrath of El-Dorado that have the ability to wipe out an entire team.
But it's not like classic UC had long shootouts. You could never have a great game of getting pinned behind cover because people spammed grenades at you. Extended shootouts never happened the way they do in UC4.
In UC4, despite the occasional surprise El Dorado, I am finding myself constantly pinned down by enemy fire, and having to carefully consider my actions. Sometimes I even have no ammo left, which makes things incredibly tense. Other times, I am trying to wait for a teammate to save me. This is usually when someone throws an El Dorado to push back players, and it all comes across as genuinely exciting and strategic.
Since grenades cool down, and since there are more items than just grenades, there is far less grenade spam, and far more enjoyable cover to cover shootouts, full of revives, healing, etc. It manages to maintain the craziness of UC, while managing a sense of LoU cover gameplay. It's really a fantastic blend.
The power weapons needs to be buffer period. The rocket launch is weaker than it was in the previous games.
I actually think the RPG is the best power weapon they have in UC4. Guaranteed a down, and fantastic in tight situations. It's like the LoU shotgun. Everything else couldn't compete for when you wanted to guarantee a down.
The grenade launcher and shotgun feel like poorer versions from UC2/UC3. Not so much the power, but the way it fires. I miss the satisfying thunk of the Hammer and the kickback of the shotguns. I hope they add them as DLC