Alright so, before the .75 update medics were not really needed because you would respawn in 5-10 seconds.
But after the update the respawn time ranges from 5-50
Medics now can be used because of the longer respawn
I think that you should be able to switch out grenades for medkits. You get unlimited health kits for teamates but only 3 for yourself.
I think 3 seconds to revive a player seem fair enough right?