The Mako's relative camera thingy is absolute bullcrap - and I can't even do anything about it, they did not include any options in the Xbox version... That's even bigger bullcrap. This also makes the thresher maw fights uncomfortable. Also, the unkillable maw bug is still present, where it can take a lot of fire with an empty HP bar, and also retracts & pops up again before the death animation.
Spectre weapons: that's a bug on your end (and I've seen here that many, many people face it). I can still see them in the stores, wonder what triggers the disappearance bug.
Damage through Shields: I did not notice this. Perhaps with certain biotic abilities? But otherwise it should not happen like that.
Asteroids: I've also noticed that! If I didn't know about the system in the first place, I would have never found any of them. The blinking was hard enough to notice in the original game in the first place - I think it took me three playthroughs to find out about it.