Is the "MEDIC!" Achievement now obtainable?

Games Halo Infinite
1

I just got 4 revives in one round of an Attrition game and the achievement did not unlock.

Is it obtainable yet?

2

I thought Elimination might be a “type” of game that Attrition was apart of, but it doesn’t seem to be the case.

Elimination must be more like Breakout from Halo 5: Guardians.

Perhaps it will come with the Tactical event.