Servers can go down mid game and people drop, they are working on server side networking stuff at the moment, but they have given no ETA. Also the stats are broken down by region and game type. I am pretty sure just like the server selection, stats default to Asia. Bandages and First aid kits only work if you have less that 75% health, otherwise they do nothing. You need energy drinks or pain killers to heal the last 25% There is also a Med kit which heals you completely.