

I agree that’s plausible, but there’s also no actual mention of that.
spoiler
Miranda was head of the entire project and she only ever seems to state that Shepard was the sole focus. I checked the various wikis too and they all seem to back that up.
So while that would make more sense, it’s definitely not established by the writers.
The RNG circle is still there in 1, but it might be slightly better.
Shields deplete slightly quicker but recharge much faster as opposed to the old game that could take like ten minutes.
You can use zoom aim with any weapon rather than just hipfire before you’ve put lots of points into it.
The improvement of aim and weapon handling is better balanced as you put points into them and there’s less extreme weapon sway.
I’m not sure, but the sound mix on the guns might have been punched up too. Either that or they just sounded real fucking good to start with.