I see a lot of bad advice from bad players. (not to be mean, only honest)
None of the mentioned mercs can stand against a good sawbones+blishlok.
I use the extra ammo and (+)20% med packs.
The problem is most new fps players are not familiar with the fast
and aggressive style of rtcw and et, where aim is rewarded above everything else.
The ability to heal after a fight is crucial when damage is dealt so quickly.
Good players playing any other merc don’t last long without a shadow medic.
That’s why you see the fragger/medic combo in competition,
fragger is nothing without that revive.