My Vanguard's shotgun is awesome.

Best Spectre gear credits can buy, High Explosive Rounds (IX or X, don't remember) - the first time I tried it out, it blew some crates back and set geth on fire. VanguardShep gets a lot of one-shot kills with it, but I am playing on Casual, so I don't know how much different it would be on higher difficulties. It gets overheated with every shot, but I just use biotics during that time anyway.
I was having trouble using Tali in combat too... It's fine in ME1, I think I'm having trouble in ME2 because a lot of her ME1 powers aren't there. Any advice? My Vanguard is going to bring her everywhere when he gets imported, and even though it's easy enough to get by on Casual, it would still be nice to know.
I liked the ME1 credits song too.

I'm going to look it up now.
Collider wrote...
The sound engine in ME1 was very flawed. Half of the time I couldn't hear what any NPCs were saying unless I rotated the camera (which doesn't make sense).
I have the same problem (playing on Xbox). For me at least, it gets better when I turn the camera to the left. It doesn't seem to have anything to do with turing it towards the character who's talking, and that doesn't make sense either. xD