If you mean the white cross in a box that you sometimes see - I always assumed that was "needs healing", as it tends to disappear shortly after I drop a medkit at their feet. The simple cross I thought was just the assault icon (like engineers have a wrench, support have 3 bullets, recon a crosshair). I've not noticed any specific icons while I was "dying."
Then again, I'm far from an expert on the subject, so I could very well be wrong - just been my feeling that there was no indication who had medkits or paddles.
Probably 7-9 hours into FFXIII-2 myself, and I like it so far. The timetravel seems fine, though it seems rather simply handled. Some weird language/mechanics (like "Close Gate". I understand what it does now - but it's not intuitive, especially not as I was able to do it before the game informed me that I had unlocked the ability to Close Gates :P).
It's neither revolutionary or ground breaking, probably won't convince people who despised XIII, but I enjoyed XIII and most of it's characters.
Looking forward to digging deeper into this during the weekend. :)
This sounds a lot more positive than a lot of other things that have been said about THQ lately, but I guess that may just be the facts of earning calls (especially ones as grim as these) needing to have a positive spin.
Either way, I think THQ has been making a lot of bold moves, and several of their games have deserved to sell better than they did.
*shrug* I'll continue recommending people to pick up SR:3, Space Marine, etc. Also, pst, I don't think Red Faction: Armaggeddon was as bad as some people are making it out to be.