R2 - I've read you can reset the key bindings, intuitively it should be somewhere in the options menu. So bind that pause straight back to the spacebar! Did you find the controls were adequately explained because I believe you can't just click on things to walk anymore and tab doesn't highlight etc. My game doesn't unlock for another two hours and I already have this sinking feeling that I'm going to be completely confused by the controls.
Oh, I know I can rebind. But there's no useable solution. If I do that, then I can't jump with the spacebar. So I'd never jump because there's no more intuitive button for that (I use WASD for moving).
The tab key will cycle through targets, which can include collectables. There's a search function I use alot like the old tab, that does the highlighting within a certain radius. With those two together, it's basically the same.
I am sad you can't click on a spot and walk. But for me, the combat is much worse.
p.s. Forgot to address "adequately explained". Not really. I usually just look through the key map to find out what controls what. The search function was well explained. I think I may need to actually read the guide on combat movement, but for now, I'm just faking it.