Good vid and agree with most if not all of it.   I would also  like to see a vault system so you can go over a  barrier or set of pipes  rather than going the long way around.  sure this can be overcome with using the armor with a jump  pack but that not always optimal.

As far as the dreadnought its problems  come down to clipping.  when it hits  a pillar or  wall  it needs to back up and try again instead of just ramming through it an clipping through a non destroyed object.

I agree, in it's current sate the cover system is kinda optional. I don't feel any benefits for using it, because if there are just a few enemies you don't really need it, if they are in large numbers the cover melts away rather fast.