What tacticals and item set do you prefer for PVP? Different for regs/ranked? Share your thoughts.

I personally use diagnostic probe (if that's the correct name, not in game to check) for the instant heal after three emergency scans. Anything that gives a boost to mobility is good. If I get it as a random drop might try the medic one, although the instant rez is pointless.

 

Kolto waves might be useful for ranked, since you're always in arena, but I don't think I use it enough to justify taking it. I've only but max a couple of weeks ago so I haven't tested them all extensively yet.