I doubt that the bot will ever know if someone is healing or not. B3 is reading all it's information from the Log, and if you would log "player A healed player B [with|without] medikit" we would need a big SSD raid system to write the information down, not to mention the size of the logfile (two reasons why bullet hits aren't logged and therefor not used by B3 on the TDM server).
Ah yes and I am the best medic ;)