Medic heal gas during ZED time can also save lives.
However in KF2, Medic buffs allow you to outrun the big guys and survive the devastating hit (+30% move speed and +20% damage resistance) and turn you into a DPS machine (+30% damage boost). In KF1, you don't really want to get smacked by a Scrake or a Fleshpound, especially if you are not a Medic or Zerk. Medic buffs: more move speed, better damage resistance, more damage output.
What do I mean by 'the game is forgiving'? I'm no KF2 expert and probably not a good player either but I think the problem with Killing Floor 2 is that the game is really forgiving in a lot of ways (especially compared to Killing Floor 1) so the devs compensate by adding a lot of annoying/gimmicky/unfair mechanics to make the game harder. But there is also a lot of complaint about how the game can be really unfair with bad spawning mechanics, bad map design, Fleshpound raging on spawn, too many EDARs/Rioters, too many Quarter Pounds running over your squad, etc. So I see that one of the main complaint about Killing Floor 2 is that the game can be really easy once you 'figure it out'.
